diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
index 8160a5af006447..53aa79b48c2b54 100644
--- a/Lib/test/test_threading.py
+++ b/Lib/test/test_threading.py
@@ -173,6 +173,8 @@ def f(mutex):
         self.assertIsInstance(threading._active[tid], threading._DummyThread)
         #Issue 29376
         self.assertTrue(threading._active[tid].is_alive())
+        #Issue 35283
+        self.assertTrue(threading._active[tid].isAlive())
         self.assertRegex(repr(threading._active[tid]), '_DummyThread')
         del threading._active[tid]
 
diff --git a/Lib/threading.py b/Lib/threading.py
index bb41456fb1410c..a47f4acb49fc53 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -1197,6 +1197,8 @@ def is_alive(self):
         assert not self._is_stopped and self._started.is_set()
         return True
 
+    isAlive = is_alive
+
     def join(self, timeout=None):
         assert False, "cannot join a dummy thread"
 
diff --git a/Misc/NEWS.d/next/Library/2018-11-22-20-14-14.bpo-35283.OBqxuw.rst b/Misc/NEWS.d/next/Library/2018-11-22-20-14-14.bpo-35283.OBqxuw.rst
new file mode 100644
index 00000000000000..f57b0ad85d540c
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2018-11-22-20-14-14.bpo-35283.OBqxuw.rst
@@ -0,0 +1 @@
+Add the "isAlive" alias for _DummyThread