USS General C. H. Muir (AP-142) was a General G. O. Squier-class transport ship for the U.S. Navy in World War II. The ship was crewed by the U.S. Coast Guard until decommissioning. She was named in honor of U.S. Army general Charles Henry Muir. She was transferred to the U.S. Army as USAT General C. H. Muir in 1946. On 1 March 1950 she was transferred to the Military Sea Transportation Service (MSTS) as USNS General C. H. Muir (T-AP-142). She was later sold for commercial operation under the names SS Chicago and SS San Juan, and was scrapped some time after 1985.

The General G. O. Squier class of transport ships was built for the U.S. Navy during World War II. The class was based upon the Maritime Commission's Type C4 ship. The class was named for United States Army Major General George Owen Squier.