diff --git a/README.md b/README.md
index 1e012055..810cdd0e 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,7 @@ __Creational Patterns__:
 | [lazy_evaluation](lazy_evaluation.py) | lazily-evaluated property pattern in Python |
 | [pool](pool.py) | preinstantiate and maintain a group of instances of the same type |
 | [prototype](prototype.py) | use a factory and clones of a prototype for new instances (if instantiation is expensive) |
+| [singleton](singleton.py) | use a singleon instances |
 
 __Structural Patterns__:
 
diff --git a/singleton.py b/singleton.py
new file mode 100644
index 00000000..7e0bb972
--- /dev/null
+++ b/singleton.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+class Singleton(object):
+    _instance = None
+
+    def __new__(cls, *args, **kwargs):
+        if not isinstance(cls._instance, cls):
+            cls._instance = object.__new__(cls, *args, **kwargs)
+        return cls._instance
+
+
+class Account(Singleton):
+    pass
+
+
+class Test(Singleton):
+    pass
+
+
+if __name__ == '__main__':
+    a = Account()
+    b = Account()
+    c = Test()
+    d = Test()
+    print 'a: %s\r\nb: %s\r\nc: %s\r\nd: %s' % (a, b, c, d)