diff --git a/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyModuleNameCompletionContributor.kt b/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyModuleNameCompletionContributor.kt
index 5c9ee03e599f..90a9ef3b7f95 100644
--- a/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyModuleNameCompletionContributor.kt
+++ b/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyModuleNameCompletionContributor.kt
@@ -56,6 +56,7 @@ class PyModuleNameCompletionContributor : CompletionContributor(), DumbAware {
     getCompletionVariants(parameters.position.parent, parameters.originalFile, otherVariants).asSequence()
       .filterIsInstance<LookupElement>()
       .filterNot { it.lookupString.startsWith('_') }
+      .filter { result.prefixMatcher.isStartMatch(it) }
       .forEach { result.addElement(PrioritizedLookupElement.withPriority(it, NOT_IMPORTED_MODULE_WEIGHT.toDouble())) }
   }
 
diff --git a/python/python-psi-impl/src/com/jetbrains/python/psi/stubs/PyQualifiedNameCompletionMatcher.java b/python/python-psi-impl/src/com/jetbrains/python/psi/stubs/PyQualifiedNameCompletionMatcher.java
index 0352475b62fb..7d9e6c86b021 100644
--- a/python/python-psi-impl/src/com/jetbrains/python/psi/stubs/PyQualifiedNameCompletionMatcher.java
+++ b/python/python-psi-impl/src/com/jetbrains/python/psi/stubs/PyQualifiedNameCompletionMatcher.java
@@ -172,7 +172,7 @@ public class PyQualifiedNameCompletionMatcher {
 
     private boolean qualifierMatches(@NotNull QualifiedName qualifier) {
       String firstComponent = Objects.requireNonNullElse(qualifier.getFirstComponent(), "");
-      if (!myQualifierFirstComponentMatcher.prefixMatches(firstComponent)) return false;
+      if (!myQualifierFirstComponentMatcher.isStartMatch(firstComponent)) return false;
       String remainder = qualifier.getComponentCount() == 0 ? "" : qualifier.removeHead(1).toString();
       if (!myQualifierRemainderMatcher.prefixMatches(remainder)) return false;
       return true;
diff --git a/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/fb.py b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/fb.py
new file mode 100644
index 000000000000..6fbcff414a68
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/fb.py
@@ -0,0 +1 @@
+var = 42
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/fb_util.py b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/fb_util.py
new file mode 100644
index 000000000000..6fbcff414a68
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/fb_util.py
@@ -0,0 +1 @@
+var = 42
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/foo_bar.py b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/foo_bar.py
new file mode 100644
index 000000000000..6fbcff414a68
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/foo_bar.py
@@ -0,0 +1 @@
+var = 42
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/foobar.py b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/foobar.py
new file mode 100644
index 000000000000..6fbcff414a68
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/foobar.py
@@ -0,0 +1 @@
+var = 42
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/main.py b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/main.py
new file mode 100644
index 000000000000..52d49b877f4a
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/main.py
@@ -0,0 +1 @@
+fb.va<caret>
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/mod_fb.py b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/mod_fb.py
new file mode 100644
index 000000000000..6fbcff414a68
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/mod_fb.py
@@ -0,0 +1 @@
+var = 42
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/mod_foo_bar.py b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/mod_foo_bar.py
new file mode 100644
index 000000000000..6fbcff414a68
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/AttributesOfModulesWithMiddleMatchNotSuggested/mod_foo_bar.py
@@ -0,0 +1 @@
+var = 42
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/FuzzyResultsShouldBeAddedToAliasAttributesCompletion/fileinput/__init__.py b/python/testData/completion/notImportedQualifiedName/FuzzyResultsShouldBeAddedToAliasAttributesCompletion/nt_parser/__init__.py
similarity index 100%
rename from python/testData/completion/notImportedQualifiedName/FuzzyResultsShouldBeAddedToAliasAttributesCompletion/fileinput/__init__.py
rename to python/testData/completion/notImportedQualifiedName/FuzzyResultsShouldBeAddedToAliasAttributesCompletion/nt_parser/__init__.py
diff --git a/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/fb.py b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/fb.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/fb_util.py b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/fb_util.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/foo_bar.py b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/foo_bar.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/foobar.py b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/foobar.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/main.py b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/main.py
new file mode 100644
index 000000000000..710667b603b0
--- /dev/null
+++ b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/main.py
@@ -0,0 +1 @@
+fb<caret>
\ No newline at end of file
diff --git a/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/mod_fb.py b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/mod_fb.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/mod_foo_bar.py b/python/testData/completion/notImportedQualifiedName/ModuleNamesWithMiddleMatchNotSuggested/mod_foo_bar.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/python/testSrc/com/jetbrains/python/PyNotImportedQualifiedNameCompletionTest.java b/python/testSrc/com/jetbrains/python/PyNotImportedQualifiedNameCompletionTest.java
index 3346b4ab5ced..ad818b22edf2 100644
--- a/python/testSrc/com/jetbrains/python/PyNotImportedQualifiedNameCompletionTest.java
+++ b/python/testSrc/com/jetbrains/python/PyNotImportedQualifiedNameCompletionTest.java
@@ -74,6 +74,7 @@ public class PyNotImportedQualifiedNameCompletionTest extends PyTestCase {
     assertTrue(matcher.prefixMatches("foo.bar.xxx.baz"));
     assertFalse(matcher.prefixMatches("foo.bar.baz.xxx"));
     assertFalse(matcher.prefixMatches("xxx.foo.bar.baz"));
+    assertFalse(matcher.prefixMatches("nonfoo.foo.bar.baz"));
   }
 
   public void testImportForModuleFunction() {
@@ -129,7 +130,7 @@ public class PyNotImportedQualifiedNameCompletionTest extends PyTestCase {
     myFixture.completeBasic();
     List<String> variants = myFixture.getLookupElementStrings();
     assertEquals(2, variants.size());
-    assertContainsElements(variants, "np.invert", "fileinput.input");
+    assertContainsElements(variants, "np.invert", "nt_parser.input");
   }
 
   //PY-47253
@@ -180,6 +181,20 @@ public class PyNotImportedQualifiedNameCompletionTest extends PyTestCase {
     assertContainsElements(myFixture.getLookupElementStrings(), "config", "contrib");
   }
 
+  // PY-47962
+  public void testModuleNamesWithMiddleMatchNotSuggested() {
+    List<String> variants = doBasicCompletion();
+    assertDoesntContain(variants, "mod_foo_bar", "mod_fb", "foobar");
+    assertContainsElements(variants, "fb", "fb_util", "foo_bar");
+  }
+
+  // PY-47962
+  public void testAttributesOfModulesWithMiddleMatchNotSuggested() {
+    List<String> variants = doBasicCompletion();
+    assertDoesntContain(variants, "mod_foo_bar.var", "mod_fb.var", "foobar.var");
+    assertContainsElements(variants, "fb.var", "fb_util.var", "foo_bar.var");
+  }
+
   @Nullable
   private List<String> doBasicCompletion() {
     myFixture.copyDirectoryToProject(getTestName(false), "");