Crooked Creek is a 13.4-mile (21.6 km)[3] tributary of the Wenaha River, flowing through southeast Washington and northeast Oregon in the United States.

[4] It then turns south again, entering Wallowa County, Oregon, and joins the Wenaha River about 5 miles (8.0 km) upstream of Troy.

[5] The creek and its tributaries form a network of canyons cut into the horizontal basalt layers of the Blue Mountains.

The entirety of the creek flows within the Wenaha-Tucannon Wilderness of the Umatilla National Forest.

Its major tributaries, listed from upstream to downstream, are Third, Second, Cherry, Melton and First Creeks, all joining from the left.