diff --git a/Lib/_pyrepl/_module_completer.py b/Lib/_pyrepl/_module_completer.py
index 17bf5cdc819542d..2505b041e76815a 100644
--- a/Lib/_pyrepl/_module_completer.py
+++ b/Lib/_pyrepl/_module_completer.py
@@ -221,7 +221,14 @@ def _find_attributes(
         if not imported_module:
             return [], None, self._get_import_completion_action(path)
         try:
-            module_attributes = dir(imported_module)
+            if hasattr(imported_module, '__all__'): # Return __all__ directly
+                names = [
+                    attr_name for attr_name in imported_module.__all__
+                    if attr_name.startswith(prefix) and attr_name.isidentifier()
+                ]
+                return names, imported_module, None
+            else:
+                module_attributes = dir(imported_module)
         except Exception:
             module_attributes = []
         # Filter out invalid attribute names, such as dashes that cannot be
diff --git a/Lib/test/test_pyrepl/test_pyrepl.py b/Lib/test/test_pyrepl/test_pyrepl.py
index 7cc178f19df6f9d..6a5130112d3fd70 100644
--- a/Lib/test/test_pyrepl/test_pyrepl.py
+++ b/Lib/test/test_pyrepl/test_pyrepl.py
@@ -2,6 +2,7 @@
 import importlib
 import io
 import itertools
+lazy import json
 import os
 import pathlib
 import pkgutil
@@ -13,6 +14,7 @@
 import tempfile
 from functools import partial
 from pkgutil import ModuleInfo
+from types import ModuleType
 from unittest import TestCase, skipUnless, SkipTest
 from unittest.mock import Mock, patch
 import warnings
@@ -1767,6 +1769,39 @@ def test_colorize_import_completions(self) -> None:
         ])
         self.assertIsNone(action)
 
+    def test_find_attributes_uses_all(self):
+        """Test that _find_attributes respects __all__ when available."""
+        completer = ModuleCompleter()
+        # json module has __all__ defined
+        attrs, module, _ = completer._find_attributes('json', '')
+        # Should match __all__ contents, not dir() which includes methods
+        expected = sorted(json.__all__)
+        self.assertEqual(sorted(attrs), expected)
+        # Should NOT contain __all__
+        self.assertNotIn('__all__', attrs)
+        # Verify we got the actual module object
+        self.assertIs(module, sys.modules.get('json'))
+
+    def test_find_attributes_uses_all_with_private_names(self):
+        module = ModuleType("module_with_private_all")
+        module.__all__ = ["public", "_private", "not-valid"]
+
+        completer = ModuleCompleter()
+        with patch.dict(sys.modules, {module.__name__: module}):
+            cases = (
+                ("", ["public", "_private"]),
+                ("pub", ["public"]),
+                ("_", ["_private"]),
+            )
+            for prefix, expected in cases:
+                with self.subTest(prefix=prefix):
+                    attrs, actual_module, action = completer._find_attributes(
+                        module.__name__, prefix
+                    )
+                    self.assertEqual(attrs, expected)
+                    self.assertIs(actual_module, module)
+                    self.assertIsNone(action)
+
 
 # Audit hook used to check for stdlib modules import side-effects
 # Defined globally to avoid adding one hook per test run (refleak)
diff --git a/Misc/NEWS.d/next/Library/2026-08-21-05-46-17.gh-issue-149167.JcHCCr.rst b/Misc/NEWS.d/next/Library/2026-08-21-05-46-17.gh-issue-149167.JcHCCr.rst
new file mode 100644
index 000000000000000..1e800c389d1902d
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2026-08-21-05-46-17.gh-issue-149167.JcHCCr.rst
@@ -0,0 +1 @@
+Updates PyREPL autocomplete on import statements to only expose public members if declared with ``__all__``