Logan Morris (October 25, 1889 – October 20, 1977) was a judge of the United States Board of Tax Appeals (later the United States Tax Court) from 1925 to 1937. Born in Logan, Utah, Morris was a Mormon missionary in Switzerland and Germany from 1911 to 1913, and then served as secretary to Senator Reed Smoot, moving to Washington, D.C., for that purpose in 1914, and receiving his law degree from the George Washington University in 1917. He served as an officer in the United States Army in World War I. Returning from the war, he was a clerk for the United States Senate Committee on Public Lands, and an attorney for various government agencies.