diff --git a/CHANGES.txt b/CHANGES.txt
index e7b35d8d42..5126623e59 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,6 @@
 Current
 7.6.0
+Fixed: GITHUB-2709: Testnames not working together with suites in suite (Martin Aldrin)
 Fixed: GITHUB-2637: Upgrade to JDK11 as the minimum JDK requirements(Krishnan Mahadevan)
 
 7.5
diff --git a/testng-core/src/main/java/org/testng/JarFileUtils.java b/testng-core/src/main/java/org/testng/JarFileUtils.java
index c0bb86f5b0..5452dfae72 100644
--- a/testng-core/src/main/java/org/testng/JarFileUtils.java
+++ b/testng-core/src/main/java/org/testng/JarFileUtils.java
@@ -93,10 +93,7 @@ private boolean testngXmlExistsInJar(File jarFile, List<String> classes) throws
         // If test names were specified, only run these test names
         if (testNames != null) {
           TestNamesMatcher testNamesMatcher = new TestNamesMatcher(suite, testNames);
-          List<String> missMatchedTestname = testNamesMatcher.getMissMatchedTestNames();
-          if (!missMatchedTestname.isEmpty()) {
-            throw new TestNGException("The test(s) <" + missMatchedTestname + "> cannot be found.");
-          }
+          testNamesMatcher.validateMissMatchedTestNames();
           suites.addAll(testNamesMatcher.getSuitesMatchingTestNames());
         } else {
           suites.add(suite);
diff --git a/testng-core/src/main/java/org/testng/TestNG.java b/testng-core/src/main/java/org/testng/TestNG.java
index 3cbebe07fd..4e538d8c5b 100644
--- a/testng-core/src/main/java/org/testng/TestNG.java
+++ b/testng-core/src/main/java/org/testng/TestNG.java
@@ -351,10 +351,7 @@ private Collection<XmlSuite> processCommandLineArgs(Collection<XmlSuite> allSuit
       }
       // If test names were specified, only run these test names
       TestNamesMatcher testNamesMatcher = new TestNamesMatcher(s, m_testNames);
-      List<String> missMatchedTestname = testNamesMatcher.getMissMatchedTestNames();
-      if (!missMatchedTestname.isEmpty()) {
-        throw new TestNGException("The test(s) <" + missMatchedTestname + "> cannot be found.");
-      }
+      testNamesMatcher.validateMissMatchedTestNames();
       result.addAll(testNamesMatcher.getSuitesMatchingTestNames());
     }
 
@@ -420,7 +417,8 @@ public void initializeSuitesAndJarFile() {
         new JarFileUtils(getProcessor(), m_xmlPathInJar, m_testNames, m_parallelMode);
 
     Collection<XmlSuite> allSuites = utils.extractSuitesFrom(jarFile);
-    m_suites.addAll(processCommandLineArgs(allSuites));
+    allSuites.forEach(this::processParallelModeCommandLineArgs);
+    m_suites.addAll(allSuites);
   }
 
   /** @param threadCount Define the number of threads in the thread pool. */
diff --git a/testng-core/src/main/java/org/testng/xml/internal/TestNamesMatcher.java b/testng-core/src/main/java/org/testng/xml/internal/TestNamesMatcher.java
index f9abeca277..9d0967f854 100644
--- a/testng-core/src/main/java/org/testng/xml/internal/TestNamesMatcher.java
+++ b/testng-core/src/main/java/org/testng/xml/internal/TestNamesMatcher.java
@@ -43,11 +43,13 @@ public List<XmlSuite> getSuitesMatchingTestNames() {
     return cloneSuites;
   }
 
-  public List<String> getMissMatchedTestNames() {
+  public void validateMissMatchedTestNames() {
     List<String> tmpTestNames = Lists.newArrayList();
     tmpTestNames.addAll(testNames);
     tmpTestNames.removeIf(matchedTestNames::contains);
-    return tmpTestNames;
+    if (!tmpTestNames.isEmpty()) {
+      throw new TestNGException("The test(s) <" + tmpTestNames + "> cannot be found in suite.");
+    }
   }
 
   public List<XmlTest> getMatchedTests() {
diff --git a/testng-core/src/test/java/org/testng/JarFileUtilsTest.java b/testng-core/src/test/java/org/testng/JarFileUtilsTest.java
index a2fcb562aa..471356f752 100644
--- a/testng-core/src/test/java/org/testng/JarFileUtilsTest.java
+++ b/testng-core/src/test/java/org/testng/JarFileUtilsTest.java
@@ -55,7 +55,7 @@ public void testWithNoTestNames() throws MalformedURLException {
   @Test(
       expectedExceptions = TestNGException.class,
       expectedExceptionsMessageRegExp =
-          "\nThe test\\(s\\) <\\[testng-tests-child11\\]> cannot be found.")
+          "\nThe test\\(s\\) <\\[testng-tests-child11\\]> cannot be found in suite.")
   public void testWithInvalidTestNames() throws MalformedURLException {
     JarFileUtils utils = newJarFileUtils(Collections.singletonList("testng-tests-child11"));
     runTest(
@@ -82,6 +82,23 @@ public void testWithInvalidXmlFile() throws MalformedURLException {
         "Jar suite");
   }
 
+  /**
+   * Test to ensure that exception is not thrown. Ensure that GITHUB-2709 can not happen again.
+   *
+   * @throws MalformedURLException
+   */
+  @Test
+  public void ensureThatExceptionAreNotThrown() throws MalformedURLException {
+    TestNG testNg = new TestNG(false);
+    List<String> testNames =
+        Arrays.asList("testng-tests-child2", "testng-tests-child4", "testng-tests-child5", "dummy");
+    testNg.setTestNames(testNames);
+    testNg.setXmlPathInJar(jar.getAbsolutePath());
+    testNg.setTestJar(jar.getAbsolutePath());
+    testNg.initializeSuitesAndJarFile();
+    Assert.assertEquals(testNg.m_suites.size(), 1);
+  }
+
   @Test
   public void testWithValidTestNamesFromMultiChildSuites() throws MalformedURLException {
     JarFileUtils utils =