USS Lamar (PCE-899)/USCGC Lamar (WTR-899) was a PCE-842-class patrol craft acquired by the U.S. Navy during World War II for the task of patrolling assigned ocean areas or protecting larger ships in convoy. PCR-899 was laid down as PC-899 on 11 January 1943 by Willamette Iron & Steel Corporation in Portland, Oregon. She was reclassified PCE-899 on 28 March 1943. She was launched on 11 August 1943 and was sponsored by Mrs. Opha McClimans. She was commissioned on 17 March 1945 under the command of LT Charles E. Pigg, Jr.