Crooked Creek is a tributary of the Allegheny River in both Armstrong and Indiana counties in the U.S. state of Pennsylvania.

[2] Several covered bridges span the stream and its tributaries in Indiana County.

The Thomas Covered Bridge crosses Crooked Creek in Armstrong Township.

[4] Crooked Creek joins the Allegheny River in both Bethel and Manor townships.

(Mouth at the Allegheny River) Crooked Creek traverses the following political subdivisions, named in order they are first encountered traveling downstream: Download coordinates as: