USS Okanogan (APA-220) was a Haskell-class attack transport that saw service with the US Navy in World War II, the Korean War and the Vietnam War.
Okanogan (APA-220), built under Maritime Administration contract by Permanente Metals Corporation of Richmond, California, was launched 26 October 1944, and acquired and commissioned 3 December 1944, Commander Frederick Fender, USNR, in command.
Okanogan's primary mission as an attack transport was to carry and disembark with her own landing craft, a full battalion of troops, and to evacuate troops, casualties, and prisoners of war from the objective. In line with this, she was equipped with all facilities for the troops embarked; messing, berthing, medical and dental care, and recreational facilities.