diff --git a/sdks/python/apache_beam/coders/coder_impl.py b/sdks/python/apache_beam/coders/coder_impl.py
index e44c2535156e5..ff5fb5bef7ac9 100644
--- a/sdks/python/apache_beam/coders/coder_impl.py
+++ b/sdks/python/apache_beam/coders/coder_impl.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """Coder implementations.
 
 The actual encode/decode implementations are split off from coders to
diff --git a/sdks/python/apache_beam/coders/stream.pyx b/sdks/python/apache_beam/coders/stream.pyx
index 8f941c151bde7..3977660f68b06 100644
--- a/sdks/python/apache_beam/coders/stream.pyx
+++ b/sdks/python/apache_beam/coders/stream.pyx
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """Compiled version of the Stream objects used by CoderImpl.
 
 For internal use only; no backwards-compatibility guarantees.
diff --git a/sdks/python/apache_beam/metrics/cells.py b/sdks/python/apache_beam/metrics/cells.py
index 53b6fc8495920..3bfbfc6b2e773 100644
--- a/sdks/python/apache_beam/metrics/cells.py
+++ b/sdks/python/apache_beam/metrics/cells.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """
 This file contains metric cell classes. A metric cell is used to accumulate
 in-memory changes to a metric. It represents a specific metric in a single
diff --git a/sdks/python/apache_beam/metrics/execution.py b/sdks/python/apache_beam/metrics/execution.py
index 4202f7996c7fd..570062371cae6 100644
--- a/sdks/python/apache_beam/metrics/execution.py
+++ b/sdks/python/apache_beam/metrics/execution.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """
 This module is for internal use only; no backwards-compatibility guarantees.
 
diff --git a/sdks/python/apache_beam/metrics/monitoring_infos.py b/sdks/python/apache_beam/metrics/monitoring_infos.py
index 7bc7cced280c1..0e638c9eb4fe7 100644
--- a/sdks/python/apache_beam/metrics/monitoring_infos.py
+++ b/sdks/python/apache_beam/metrics/monitoring_infos.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 # pytype: skip-file
 
 import collections
diff --git a/sdks/python/apache_beam/runners/common.py b/sdks/python/apache_beam/runners/common.py
index 40a3341e2b4c3..ba4dd98c7a937 100644
--- a/sdks/python/apache_beam/runners/common.py
+++ b/sdks/python/apache_beam/runners/common.py
@@ -14,7 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-# cython: language_level=3
 
 """Worker operations executor.
 
diff --git a/sdks/python/apache_beam/runners/worker/logger.py b/sdks/python/apache_beam/runners/worker/logger.py
index 1efebeb3c78c0..06e2508fb7d29 100644
--- a/sdks/python/apache_beam/runners/worker/logger.py
+++ b/sdks/python/apache_beam/runners/worker/logger.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """Python worker logging."""
 
 # pytype: skip-file
diff --git a/sdks/python/apache_beam/runners/worker/opcounters.py b/sdks/python/apache_beam/runners/worker/opcounters.py
index ba53cbcbce7f5..51ca4cf0545b7 100644
--- a/sdks/python/apache_beam/runners/worker/opcounters.py
+++ b/sdks/python/apache_beam/runners/worker/opcounters.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """Counters collect the progress of the Worker for reporting to the service."""
 
 # pytype: skip-file
diff --git a/sdks/python/apache_beam/runners/worker/operations.py b/sdks/python/apache_beam/runners/worker/operations.py
index 00a652c49e669..58c807c28dbd4 100644
--- a/sdks/python/apache_beam/runners/worker/operations.py
+++ b/sdks/python/apache_beam/runners/worker/operations.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """Worker operations executor."""
 
 # pytype: skip-file
diff --git a/sdks/python/apache_beam/runners/worker/statesampler_fast.pyx b/sdks/python/apache_beam/runners/worker/statesampler_fast.pyx
index 7c082b7a62269..d02d05c3af942 100644
--- a/sdks/python/apache_beam/runners/worker/statesampler_fast.pyx
+++ b/sdks/python/apache_beam/runners/worker/statesampler_fast.pyx
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """State sampler for tracking time spent in execution steps.
 
 The state sampler profiles the time spent in each step of a pipeline.
diff --git a/sdks/python/apache_beam/testing/fast_test_utils.pyx b/sdks/python/apache_beam/testing/fast_test_utils.pyx
index d78a5b773186f..d815bcfe8f966 100644
--- a/sdks/python/apache_beam/testing/fast_test_utils.pyx
+++ b/sdks/python/apache_beam/testing/fast_test_utils.pyx
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 cimport libc.stdint
 cimport libc.stdlib
 cimport libc.string
diff --git a/sdks/python/apache_beam/transforms/cy_combiners.py b/sdks/python/apache_beam/transforms/cy_combiners.py
index 2267d02c1908c..b5cc7493a29a3 100644
--- a/sdks/python/apache_beam/transforms/cy_combiners.py
+++ b/sdks/python/apache_beam/transforms/cy_combiners.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """A library of basic cythonized CombineFn subclasses.
 
 For internal use only; no backwards-compatibility guarantees.
diff --git a/sdks/python/apache_beam/transforms/cy_dataflow_distribution_counter.pyx b/sdks/python/apache_beam/transforms/cy_dataflow_distribution_counter.pyx
index c1b32356ed1ff..c117ae32f4e5f 100644
--- a/sdks/python/apache_beam/transforms/cy_dataflow_distribution_counter.pyx
+++ b/sdks/python/apache_beam/transforms/cy_dataflow_distribution_counter.pyx
@@ -14,8 +14,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """ For internal use only. No backwards compatibility guarantees."""
 
 cimport cython
diff --git a/sdks/python/apache_beam/transforms/stats.py b/sdks/python/apache_beam/transforms/stats.py
index 2599760f8d5be..d389463e55a26 100644
--- a/sdks/python/apache_beam/transforms/stats.py
+++ b/sdks/python/apache_beam/transforms/stats.py
@@ -15,8 +15,6 @@
 # limitations under the License.
 #
 
-# cython: language_level=3
-
 """This module has all statistic related transforms.
 
 This ApproximateUnique class will be deprecated [1]. PLease look into using
diff --git a/sdks/python/apache_beam/utils/counters.py b/sdks/python/apache_beam/utils/counters.py
index 214fa433de1c4..57d73fa283ebf 100644
--- a/sdks/python/apache_beam/utils/counters.py
+++ b/sdks/python/apache_beam/utils/counters.py
@@ -17,7 +17,6 @@
 
 # cython: profile=False
 # cython: overflowcheck=True
-# cython: language_level=3
 
 """Counters collect the progress of the Worker for reporting to the service.
 
diff --git a/sdks/python/apache_beam/utils/windowed_value.py b/sdks/python/apache_beam/utils/windowed_value.py
index fb15d3778a6a0..f6232ce2f6b0d 100644
--- a/sdks/python/apache_beam/utils/windowed_value.py
+++ b/sdks/python/apache_beam/utils/windowed_value.py
@@ -22,8 +22,6 @@
 # editing this file as WindowedValues are created for every element for
 # every step in a Beam pipeline.
 
-# cython: language_level=3
-
 # pytype: skip-file
 
 import collections