Captain Alexander Rives Skinker (October 13, 1883 – September 26, 1918) was a Medal of Honor recipient during World War I. He graduated from Washington University in St. Louis in 1905. He served in the Missouri National Guard from 1903 to 1908, and entered the Army as a commissioned officer in 1916. He was awarded the medal for leading an attack on German pillboxes in the Hindenburg Line during the Battle of the Argonne. Skinker was killed in the attack.