diff --git a/hello_world.py b/hello_world.py
new file mode 100644
index 0000000..992c691
--- /dev/null
+++ b/hello_world.py
@@ -0,0 +1,12 @@
+def hello_world():
+    """
+    A simple Hello World function.
+
+    Returns:
+        str: A greeting message
+    """
+    return "Hello World"
+
+
+if __name__ == "__main__":
+    print(hello_world())