USS Crook County (LST-611), originally USS LST-611, was a United States Navy LST-542-class tank landing ship built during World War II and in commission from 1944 to 1956.

LST-611 was laid down on 17 December 1943 at Seneca, Illinois, by the Chicago Bridge and Iron Company.

She was launched on 28 April 1944, sponsored by Mrs. Ray Hines, and commissioned on 15 May 1944.

LST-611 operated with the Amphibious Force, United States Pacific Fleet, following World War II and participated in the Inchon landings in September 1950 during the Korean War.

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