diff --git a/pyflakes/checker.py b/pyflakes/checker.py
index 135ad33c..6e98d749 100644
--- a/pyflakes/checker.py
+++ b/pyflakes/checker.py
@@ -693,6 +693,10 @@ def getNodeName(node):
         return node.name
 
 
+def _is_dunder(name):
+    return name.startswith("__") and name.endswith("__") and len(name) > 4
+
+
 TYPING_MODULES = frozenset(('typing', 'typing_extensions'))
 
 
@@ -1026,7 +1030,9 @@ def checkDeadScopes(self):
             # Look for imported names that aren't used.
             for value in scope.values():
                 if isinstance(value, Importation):
-                    used = value.used or value.name in all_names
+                    used = (value.used or value.name in all_names
+                            or isinstance(scope, ModuleScope)
+                            and _is_dunder(value.name))
                     if not used:
                         messg = messages.UnusedImport
                         self.report(messg, value.source, str(value))
diff --git a/pyflakes/test/test_imports.py b/pyflakes/test/test_imports.py
index d5be2693..335c00d6 100644
--- a/pyflakes/test/test_imports.py
+++ b/pyflakes/test/test_imports.py
@@ -154,6 +154,12 @@ def test_usedImport_relative(self):
         self.flakes('from .. import fu; assert fu')
         self.flakes('from ..bar import fu as baz; assert baz')
 
+    def test_implicitlyUsedDunderImport(self):
+        self.flakes('from foo import __author__')
+        self.flakes('from foo import version as __version__')
+        self.flakes('from .foo import __author__')
+        self.flakes('from .foo import version as __version__')
+
     def test_redefinedWhileUnused(self):
         self.flakes('import fu; fu = 3', m.RedefinedWhileUnused)
         self.flakes('import fu; fu, bar = 3', m.RedefinedWhileUnused)