diff --git a/.kokoro/presubmit-against-pubsublite-samples.sh b/.kokoro/presubmit-against-pubsublite-samples.sh
index 639cbb8d3..7108d317c 100755
--- a/.kokoro/presubmit-against-pubsublite-samples.sh
+++ b/.kokoro/presubmit-against-pubsublite-samples.sh
@@ -29,7 +29,7 @@ env | grep KOKORO
 # Install nox
 python3.9 -m pip install --upgrade --quiet nox
 
-# Use secrets acessor service account to get secrets
+# Use secrets accessor service account to get secrets
 if [[ -f "${KOKORO_GFILE_DIR}/secrets_viewer_service_account.json" ]]; then
     gcloud auth activate-service-account \
 	   --key-file="${KOKORO_GFILE_DIR}/secrets_viewer_service_account.json" \
diff --git a/.kokoro/test-samples-impl.sh b/.kokoro/test-samples-impl.sh
index 55910c8ba..f987b8961 100755
--- a/.kokoro/test-samples-impl.sh
+++ b/.kokoro/test-samples-impl.sh
@@ -35,7 +35,7 @@ env | grep KOKORO
 # Install nox
 python3.9 -m pip install --upgrade --quiet nox
 
-# Use secrets acessor service account to get secrets
+# Use secrets accessor service account to get secrets
 if [[ -f "${KOKORO_GFILE_DIR}/secrets_viewer_service_account.json" ]]; then
     gcloud auth activate-service-account \
 	   --key-file="${KOKORO_GFILE_DIR}/secrets_viewer_service_account.json" \
diff --git a/.kokoro/trampoline_v2.sh b/.kokoro/trampoline_v2.sh
index 35fa52923..9ba314ef5 100755
--- a/.kokoro/trampoline_v2.sh
+++ b/.kokoro/trampoline_v2.sh
@@ -391,7 +391,7 @@ docker_flags=(
     # Use the host network.
     "--network=host"
 
-    # Run in priviledged mode. We are not using docker for sandboxing or
+    # Run in privileged mode. We are not using docker for sandboxing or
     # isolation, just for packaging our dev tools.
     "--privileged"
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64bb863eb..888ab9a08 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -747,7 +747,7 @@
 * flaky samples tests ([#263](https://www.github.com/googleapis/python-pubsub/issues/263)) ([3d6a29d](https://www.github.com/googleapis/python-pubsub/commit/3d6a29de07cc09be663c90a3333f4cd33633994f))
 * Modify synth.py to update grpc transport options ([#266](https://www.github.com/googleapis/python-pubsub/issues/266)) ([41dcd30](https://www.github.com/googleapis/python-pubsub/commit/41dcd30636168f3dd1248f1d99170d531fc9bcb8))
 * pass anonymous credentials for emulator ([#250](https://www.github.com/googleapis/python-pubsub/issues/250)) ([8eed8e1](https://www.github.com/googleapis/python-pubsub/commit/8eed8e16019510dc8b20fb6b009d61a7ac532d26))
-* remove grpc send/recieve limits ([#259](https://www.github.com/googleapis/python-pubsub/issues/259)) ([fd2840c](https://www.github.com/googleapis/python-pubsub/commit/fd2840c10f92b03da7f4b40ac69c602220757c0a))
+* remove grpc send/receive limits ([#259](https://www.github.com/googleapis/python-pubsub/issues/259)) ([fd2840c](https://www.github.com/googleapis/python-pubsub/commit/fd2840c10f92b03da7f4b40ac69c602220757c0a))
 
 ## [2.2.0](https://www.github.com/googleapis/python-pubsub/compare/v2.1.0...v2.2.0) (2020-11-16)
 
@@ -861,7 +861,7 @@ This is the last release that supports Python 2.7 and 3.5.
 
 
 ### Internal / Testing Changes
-- Re-generated service implementaton using synth: removed experimental notes from the RetryPolicy and filtering features in anticipation of GA, added DetachSubscription (experimental) ([#114](https://github.com/googleapis/python-pubsub/pull/114)) ([0132a46](https://github.com/googleapis/python-pubsub/commit/0132a4680e0727ce45d5e27d98ffc9f3541a0962))
+- Re-generated service implementation using synth: removed experimental notes from the RetryPolicy and filtering features in anticipation of GA, added DetachSubscription (experimental) ([#114](https://github.com/googleapis/python-pubsub/pull/114)) ([0132a46](https://github.com/googleapis/python-pubsub/commit/0132a4680e0727ce45d5e27d98ffc9f3541a0962))
 - Incorporate will_accept() checks into publish() ([#108](https://github.com/googleapis/python-pubsub/pull/108)) ([6c7677e](https://github.com/googleapis/python-pubsub/commit/6c7677ecb259672bbb9b6f7646919e602c698570))
 
 ## [1.5.0](https://www.github.com/googleapis/python-pubsub/compare/v1.4.3...v1.5.0) (2020-05-04)
@@ -984,7 +984,7 @@ This is the last release that supports Python 2.7 and 3.5.
 ### Documentation
 - Update docstrings for client kwargs and fix return types uris ([#9037](https://github.com/googleapis/google-cloud-python/pull/9037))
 - Remove CI for gh-pages, use googleapis.dev for api_core refs. ([#9085](https://github.com/googleapis/google-cloud-python/pull/9085))
-- Remove compatability badges from READMEs. ([#9035](https://github.com/googleapis/google-cloud-python/pull/9035))
+- Remove compatibility badges from READMEs. ([#9035](https://github.com/googleapis/google-cloud-python/pull/9035))
 
 ### Internal / Testing Changes
 - Add dead-letter-policy field in preparation for its implementation (via synth) ([#9078](https://github.com/googleapis/google-cloud-python/pull/9078))
@@ -1023,7 +1023,7 @@ This is the last release that supports Python 2.7 and 3.5.
 
 
 ### Implementation Changes
-- Accomodate new location of 'IAMPolicyStub' (via synth). ([#8680](https://github.com/googleapis/google-cloud-python/pull/8680))
+- Accommodate new location of 'IAMPolicyStub' (via synth). ([#8680](https://github.com/googleapis/google-cloud-python/pull/8680))
 - Use kwargs in test_subscriber_client ([#8414](https://github.com/googleapis/google-cloud-python/pull/8414))
 
 ### New Features
@@ -1308,7 +1308,7 @@ This is the last release that supports Python 2.7 and 3.5.
 ### Implementation changes
 
 - Drop leased messages after flow_control.max_lease_duration has passed. (#5020)
-- Fix mantain leases to not modack messages it just dropped (#5045)
+- Fix maintain leases to not modack messages it just dropped (#5045)
 - Avoid race condition in maintain_leases by copying leased_messages (#5035)
 - Retry subscription stream on InternalServerError, Unknown, and GatewayTimeout (#5021)
 - Use the rpc's status to determine when to exit the request generator thread (#5054)
diff --git a/docs/pubsub/publisher/index.rst b/docs/pubsub/publisher/index.rst
index 2a0ad320e..7c9fa34b8 100644
--- a/docs/pubsub/publisher/index.rst
+++ b/docs/pubsub/publisher/index.rst
@@ -113,7 +113,7 @@ an instance of :class:`~.pubsub_v1.publisher.futures.Future`.
    
    The returned future conforms for the most part to the interface of
    the standard library's :class:`~concurrent.futures.Future`, but might not
-   be usable in all cases which expect that exact implementaton.
+   be usable in all cases which expect that exact implementation.
 
 You can use this to ensure that the publish succeeded:
 
diff --git a/google/cloud/pubsub_v1/futures.py b/google/cloud/pubsub_v1/futures.py
index 5527d21d0..4cac15770 100644
--- a/google/cloud/pubsub_v1/futures.py
+++ b/google/cloud/pubsub_v1/futures.py
@@ -23,7 +23,7 @@
 class Future(concurrent.futures.Future, google.api_core.future.Future):
     """Encapsulation of the asynchronous execution of an action.
 
-    This object is returned from asychronous Pub/Sub calls, and is the
+    This object is returned from asynchronous Pub/Sub calls, and is the
     interface to determine the status of those calls.
 
     This object should not be created directly, but is returned by other
diff --git a/google/cloud/pubsub_v1/open_telemetry/subscribe_opentelemetry.py b/google/cloud/pubsub_v1/open_telemetry/subscribe_opentelemetry.py
index 88870be60..f06c29d28 100644
--- a/google/cloud/pubsub_v1/open_telemetry/subscribe_opentelemetry.py
+++ b/google/cloud/pubsub_v1/open_telemetry/subscribe_opentelemetry.py
@@ -53,7 +53,7 @@ def __init__(self, message: PubsubMessage):
 
         # This will be set by `start_subscribe_span` method, if a publisher create span
         # context was extracted from trace propagation. And will be used by spans like
-        # proces span to add links to the publisher create span.
+        # process span to add links to the publisher create span.
         self._publisher_create_span_context: Optional[context.Context] = None
 
         # This will be set by `start_subscribe_span` method and will be used
diff --git a/google/cloud/pubsub_v1/publisher/_batch/thread.py b/google/cloud/pubsub_v1/publisher/_batch/thread.py
index c4bf67c35..e32cbfac8 100644
--- a/google/cloud/pubsub_v1/publisher/_batch/thread.py
+++ b/google/cloud/pubsub_v1/publisher/_batch/thread.py
@@ -84,10 +84,10 @@ class Batch(base.Batch):
         commit_when_full:
             Whether to commit the batch when the batch is full.
         commit_retry:
-            Designation of what errors, if any, should be retried when commiting
+            Designation of what errors, if any, should be retried when committing
             the batch. If not provided, a default retry is used.
         commit_timeout:
-            The timeout to apply when commiting the batch. If not provided, a default
+            The timeout to apply when committing the batch. If not provided, a default
             timeout is used.
     """
 
diff --git a/google/cloud/pubsub_v1/publisher/client.py b/google/cloud/pubsub_v1/publisher/client.py
index 481a8472d..ca6f5f75a 100644
--- a/google/cloud/pubsub_v1/publisher/client.py
+++ b/google/cloud/pubsub_v1/publisher/client.py
@@ -223,7 +223,7 @@ def api(self):
         """
         msg = (
             'The "api" property only exists for backward compatibility, access its '
-            'attributes directly thorugh the client instance (e.g. "client.foo" '
+            'attributes directly through the client instance (e.g. "client.foo" '
             'instead of "client.api.foo").'
         )
         warnings.warn(msg, category=DeprecationWarning)
@@ -336,7 +336,7 @@ def publish(  # type: ignore[override]
             retry:
                 Designation of what errors, if any, should be retried. If `ordering_key`
                 is specified, the total retry deadline will be changed to "infinity".
-                If given, it overides any retry passed into the client through
+                If given, it overrides any retry passed into the client through
                 the ``publisher_options`` argument.
             timeout:
                 The timeout for the RPC request. Can be used to override any timeout
diff --git a/google/cloud/pubsub_v1/publisher/flow_controller.py b/google/cloud/pubsub_v1/publisher/flow_controller.py
index baf6ba8ff..0af052616 100644
--- a/google/cloud/pubsub_v1/publisher/flow_controller.py
+++ b/google/cloud/pubsub_v1/publisher/flow_controller.py
@@ -170,7 +170,7 @@ def add(self, message: MessageType) -> None:
             del self._waiting[current_thread]
 
     def release(self, message: MessageType) -> None:
-        """Release a mesage from flow control.
+        """Release a message from flow control.
 
         Args:
             message:
diff --git a/google/cloud/pubsub_v1/publisher/futures.py b/google/cloud/pubsub_v1/publisher/futures.py
index 7b5921673..6399d4964 100644
--- a/google/cloud/pubsub_v1/publisher/futures.py
+++ b/google/cloud/pubsub_v1/publisher/futures.py
@@ -24,7 +24,7 @@
 
 
 class Future(futures.Future):
-    """This future object is returned from asychronous Pub/Sub publishing
+    """This future object is returned from asynchronous Pub/Sub publishing
     calls.
 
     Calling :meth:`result` will resolve the future by returning the message
diff --git a/google/cloud/pubsub_v1/subscriber/_protocol/histogram.py b/google/cloud/pubsub_v1/subscriber/_protocol/histogram.py
index d922bbf68..7b39f859d 100644
--- a/google/cloud/pubsub_v1/subscriber/_protocol/histogram.py
+++ b/google/cloud/pubsub_v1/subscriber/_protocol/histogram.py
@@ -41,7 +41,7 @@ def __init__(self, data: Optional[Dict[int, int]] = None):
 
         Args:
             data:
-                The data strucure to be used to store the underlying data. The default
+                The data structure to be used to store the underlying data. The default
                 is an empty dictionary. This can be set to a dictionary-like object if
                 required (for example, if a special object is needed for concurrency
                 reasons).
@@ -129,11 +129,11 @@ def add(self, value: Union[int, float]) -> None:
         self._len += 1
 
     def percentile(self, percent: Union[int, float]) -> int:
-        """Return the value that is the Nth precentile in the histogram.
+        """Return the value that is the Nth percentile in the histogram.
 
         Args:
             percent:
-                The precentile being sought. The default consumer implementations
+                The percentile being sought. The default consumer implementations
                 consistently use ``99``.
 
         Returns:
diff --git a/google/cloud/pubsub_v1/subscriber/_protocol/messages_on_hold.py b/google/cloud/pubsub_v1/subscriber/_protocol/messages_on_hold.py
index 3d4c2a392..3bfd81b1a 100644
--- a/google/cloud/pubsub_v1/subscriber/_protocol/messages_on_hold.py
+++ b/google/cloud/pubsub_v1/subscriber/_protocol/messages_on_hold.py
@@ -62,7 +62,7 @@ def size(self) -> int:
 
     def get(self) -> Optional["subscriber.message.Message"]:
         """Gets a message from the on-hold queue. A message with an ordering
-        key wont be returned if there's another message with the same key in
+        key won't be returned if there's another message with the same key in
         flight.
 
         Returns:
diff --git a/google/cloud/pubsub_v1/subscriber/client.py b/google/cloud/pubsub_v1/subscriber/client.py
index 175095077..4e314eb21 100644
--- a/google/cloud/pubsub_v1/subscriber/client.py
+++ b/google/cloud/pubsub_v1/subscriber/client.py
@@ -170,7 +170,7 @@ def api(self):
         """
         msg = (
             'The "api" property only exists for backward compatibility, access its '
-            'attributes directly thorugh the client instance (e.g. "client.foo" '
+            'attributes directly through the client instance (e.g. "client.foo" '
             'instead of "client.api.foo").'
         )
         warnings.warn(msg, category=DeprecationWarning)
diff --git a/google/cloud/pubsub_v1/subscriber/message.py b/google/cloud/pubsub_v1/subscriber/message.py
index 61f60c4d9..7be6264bd 100644
--- a/google/cloud/pubsub_v1/subscriber/message.py
+++ b/google/cloud/pubsub_v1/subscriber/message.py
@@ -261,7 +261,7 @@ def ack(self) -> None:
             Acks in Pub/Sub are best effort. You should always
             ensure that your processing code is idempotent, as you may
             receive any given message more than once. If you need strong
-            guarantees about acks and re-deliveres, enable exactly-once
+            guarantees about acks and re-delivers, enable exactly-once
             delivery on your subscription and use the `ack_with_response`
             method instead. Exactly once delivery is a preview feature.
             For more details, see:
@@ -372,7 +372,7 @@ def modify_ack_deadline(self, seconds: int) -> None:
         The default implementation handles automatically modacking received messages for you;
         you should not need to manually deal with setting ack deadlines. The exception case is
         if you are implementing your own custom subclass of
-        :class:`~.pubsub_v1.subcriber._consumer.Consumer`.
+        :class:`~.pubsub_v1.subscriber._consumer.Consumer`.
 
         Args:
             seconds (int):
@@ -398,7 +398,7 @@ def modify_ack_deadline_with_response(self, seconds: int) -> "futures.Future":
         The default implementation handles automatically modacking received messages for you;
         you should not need to manually deal with setting ack deadlines. The exception case is
         if you are implementing your own custom subclass of
-        :class:`~.pubsub_v1.subcriber._consumer.Consumer`.
+        :class:`~.pubsub_v1.subscriber._consumer.Consumer`.
 
         If exactly-once delivery is NOT enabled on the subscription, the
         future returns immediately with an AcknowledgeStatus.SUCCESS.
diff --git a/google/cloud/pubsub_v1/subscriber/scheduler.py b/google/cloud/pubsub_v1/subscriber/scheduler.py
index a3b3c88e1..84dd7669c 100644
--- a/google/cloud/pubsub_v1/subscriber/scheduler.py
+++ b/google/cloud/pubsub_v1/subscriber/scheduler.py
@@ -160,7 +160,7 @@ def shutdown(
         try:
             while True:
                 work_item = self._executor._work_queue.get(block=False)
-                if work_item is None:  # Exceutor in shutdown mode.
+                if work_item is None:  # Executor in shutdown mode.
                     continue
                 dropped_messages.append(work_item.args[0])  # type: ignore[index]
         except queue.Empty:
diff --git a/google/pubsub_v1/types/pubsub.py b/google/pubsub_v1/types/pubsub.py
index d40d7c24e..ae2d3ee85 100644
--- a/google/pubsub_v1/types/pubsub.py
+++ b/google/pubsub_v1/types/pubsub.py
@@ -1137,7 +1137,7 @@ class Subscription(proto.Message):
         analytics_hub_subscription_info (google.pubsub_v1.types.Subscription.AnalyticsHubSubscriptionInfo):
             Output only. Information about the associated
             Analytics Hub subscription. Only set if the
-            subscritpion is created by Analytics Hub.
+            subscription is created by Analytics Hub.
     """
 
     class State(proto.Enum):
diff --git a/owlbot.py b/owlbot.py
index 204b30ba5..ed21cf615 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -309,7 +309,7 @@
     )
     if count < 9:
         raise Exception(
-            "Default retry deadline not overriden for all publisher methods."
+            "Default retry deadline not overridden for all publisher methods."
         )
 
     # The namespace package declaration in google/cloud/__init__.py should be excluded
diff --git a/samples/snippets/subscriber.py b/samples/snippets/subscriber.py
index 180b091db..54406b700 100644
--- a/samples/snippets/subscriber.py
+++ b/samples/snippets/subscriber.py
@@ -896,7 +896,7 @@ def receive_messages_with_blocking_shutdown(
 
     def callback(message: pubsub_v1.subscriber.message.Message) -> None:
         print(f"Received {message.data!r}.")
-        time.sleep(timeout + 3.0)  # Pocess longer than streaming pull future timeout.
+        time.sleep(timeout + 3.0)  # Process longer than streaming pull future timeout.
         message.ack()
         print(f"Done processing the message {message.data!r}.")
 
diff --git a/tests/system.py b/tests/system.py
index 6bf8ef10f..e9e64499d 100644
--- a/tests/system.py
+++ b/tests/system.py
@@ -444,7 +444,7 @@ def test_managing_subscription_iam_policy(
 def test_subscriber_not_leaking_open_sockets(
     publisher, topic_path_base, subscription_path_base, cleanup, transport
 ):
-    # Make sure the topic and the supscription get deleted.
+    # Make sure the topic and the subscription get deleted.
     # NOTE: Since subscriber client will be closed in the test, we should not
     # use the shared `subscriber` fixture, but instead construct a new client
     # in this test.
@@ -752,7 +752,7 @@ def callback2(message):
             subscription_future.result()  # block until shutdown completes
 
         # There should be 7 messages left that were not yet processed and none of them
-        # should be a message that should have already been sucessfully processed in the
+        # should be a message that should have already been successfully processed in the
         # first streaming pull.
         assert len(remaining) == 7
         assert not (set(processed_messages) & set(remaining))  # no re-delivery
@@ -867,7 +867,7 @@ def test_snapshot_seek_subscriber_permissions_sufficient(
         )
         subscriber_only_client = type(subscriber).from_service_account_file(filename)
 
-        # Publish two messages and create a snapshot inbetween.
+        # Publish two messages and create a snapshot in between.
         _publish_messages(publisher, topic_path, batch_sizes=[1])
         response = subscriber.pull(subscription=subscription_path, max_messages=10)
         assert len(response.received_messages) == 1
@@ -968,7 +968,7 @@ def _publish_messages(publisher, topic_path, batch_sizes):
             publish_futures.append(future)
         time.sleep(0.1)
 
-    # wait untill all messages have been successfully published
+    # wait until all messages have been successfully published
     for future in publish_futures:
         future.result(timeout=30)
 
diff --git a/tests/unit/pubsub_v1/publisher/batch/test_thread.py b/tests/unit/pubsub_v1/publisher/batch/test_thread.py
index 32eaa3d98..43e5e2ad9 100644
--- a/tests/unit/pubsub_v1/publisher/batch/test_thread.py
+++ b/tests/unit/pubsub_v1/publisher/batch/test_thread.py
@@ -329,7 +329,7 @@ def test_blocking__commit_wrong_messageid_length():
         assert isinstance(future.exception(), exceptions.PublishError)
 
 
-def test_block__commmit_api_error():
+def test_block__commit_api_error():
     batch = create_batch()
     futures = (
         batch.publish(
@@ -356,7 +356,7 @@ def test_block__commmit_api_error():
         assert future.exception() == error
 
 
-def test_block__commmit_retry_error():
+def test_block__commit_retry_error():
     batch = create_batch()
     futures = (
         batch.publish(
diff --git a/tests/unit/pubsub_v1/publisher/test_flow_controller.py b/tests/unit/pubsub_v1/publisher/test_flow_controller.py
index 776c6db41..02e25c88a 100644
--- a/tests/unit/pubsub_v1/publisher/test_flow_controller.py
+++ b/tests/unit/pubsub_v1/publisher/test_flow_controller.py
@@ -282,7 +282,7 @@ def test_blocking_on_overflow_until_free_capacity():
     assert released_count == 2, "Exactly two threads should have been unblocked."
 
 
-def test_error_if_mesage_would_block_indefinitely():
+def test_error_if_message_would_block_indefinitely():
     settings = types.PublishFlowControl(
         message_limit=0,  # simulate non-sane settings
         byte_limit=1,
@@ -339,7 +339,7 @@ def test_threads_posting_large_messages_do_not_starve():
     messages = [grpc_types.PubsubMessage(data=b"x" * 10)] * 10
     _run_in_daemon(flow_controller.add, messages, adding_busy_done, action_pause=0.1)
 
-    # At the same time, gradually keep releasing the messages - the freeed up
+    # At the same time, gradually keep releasing the messages - the freed up
     # capacity should be consumed by the large message, not the other small messages
     # being added after it.
     _run_in_daemon(
@@ -376,7 +376,7 @@ def test_blocked_messages_are_accepted_in_fifo_order():
     )
     flow_controller = FlowController(settings)
 
-    # It's OK if the message instance is shared, as flow controlelr is only concerned
+    # It's OK if the message instance is shared, as flow controller is only concerned
     # with byte sizes and counts, and not with particular message instances.
     message = grpc_types.PubsubMessage(data=b"x")
 
diff --git a/tests/unit/pubsub_v1/publisher/test_publisher_client.py b/tests/unit/pubsub_v1/publisher/test_publisher_client.py
index abc33f8cb..8f1475f53 100644
--- a/tests/unit/pubsub_v1/publisher/test_publisher_client.py
+++ b/tests/unit/pubsub_v1/publisher/test_publisher_client.py
@@ -336,7 +336,7 @@ def test_opentelemetry_publish(creds, span_exporter):
     # publish() function and are deterministically expected to be in the
     # list of exported spans. The Publish Create span and Publish RPC span
     # are run async and end at a non-deterministic time. Hence,
-    # asserting that we have atleast two spans(flow control and batching span)
+    # asserting that we have at least two spans(flow control and batching span)
     assert len(spans) >= 2
     flow_control_span = None
     batching_span = None
@@ -410,7 +410,7 @@ def init(self, *args, **kwargs):
 def test_init_emulator(monkeypatch):
     monkeypatch.setenv("PUBSUB_EMULATOR_HOST", "/foo/bar:123")
     # NOTE: When the emulator host is set, a custom channel will be used, so
-    #       no credentials (mock ot otherwise) can be passed in.
+    #       no credentials (mock or otherwise) can be passed in.
     client = publisher.Client()
 
     # Establish that a gRPC request would attempt to hit the emulator host.
diff --git a/tests/unit/pubsub_v1/subscriber/test_streaming_pull_manager.py b/tests/unit/pubsub_v1/subscriber/test_streaming_pull_manager.py
index 4d2d1b98e..7f3753283 100644
--- a/tests/unit/pubsub_v1/subscriber/test_streaming_pull_manager.py
+++ b/tests/unit/pubsub_v1/subscriber/test_streaming_pull_manager.py
@@ -1684,7 +1684,7 @@ def test__on_response_modifies_ack_deadline():
     # adjust message bookkeeping in leaser
     fake_leaser_add(leaser, init_msg_count=0, assumed_msg_size=80)
 
-    # Actually run the method and chack that correct MODACK value is used.
+    # Actually run the method and check that correct MODACK value is used.
     with mock.patch.object(
         type(manager), "ack_deadline", new=mock.PropertyMock(return_value=18)
     ):
diff --git a/tests/unit/pubsub_v1/subscriber/test_subscriber_client.py b/tests/unit/pubsub_v1/subscriber/test_subscriber_client.py
index 7c0ebfd83..9de91ff55 100644
--- a/tests/unit/pubsub_v1/subscriber/test_subscriber_client.py
+++ b/tests/unit/pubsub_v1/subscriber/test_subscriber_client.py
@@ -122,7 +122,7 @@ def init(self, *args, **kwargs):
 def test_init_emulator(monkeypatch):
     monkeypatch.setenv("PUBSUB_EMULATOR_HOST", "/baz/bacon:123")
     # NOTE: When the emulator host is set, a custom channel will be used, so
-    #       no credentials (mock ot otherwise) can be passed in.
+    #       no credentials (mock or otherwise) can be passed in.
     client = subscriber.Client()
 
     # Establish that a gRPC request would attempt to hit the emulator host.
@@ -229,8 +229,8 @@ def test_context_manager_raises_if_closed(creds):
     with mock.patch.object(client._transport.grpc_channel, "close"):
         client.close()
 
-    expetect_msg = r"(?i).*closed.*cannot.*context manager.*"
-    with pytest.raises(RuntimeError, match=expetect_msg):
+    expect_msg = r"(?i).*closed.*cannot.*context manager.*"
+    with pytest.raises(RuntimeError, match=expect_msg):
         with client:
             pass  # pragma: NO COVER
 
diff --git a/tests/unit/pubsub_v1/test_futures.py b/tests/unit/pubsub_v1/test_futures.py
index 5a4dad41a..6720f5347 100644
--- a/tests/unit/pubsub_v1/test_futures.py
+++ b/tests/unit/pubsub_v1/test_futures.py
@@ -160,7 +160,7 @@ def resolve_future(future_idx, delay=0):
     all_futures[2].set_result("2: I'm done!")
 
     # Start marking the futures as completed (either with success or error) at
-    # different times and check that ther "as completed" order is correct.
+    # different times and check that the "as completed" order is correct.
     for future_idx, delay in ((0, 0.8), (3, 0.6), (1, 0.4), (5, 0.2)):
         threading.Thread(
             target=resolve_future, args=(future_idx, delay), daemon=True