Orville Martin Armbrust
- Bats Right, Throws Right
- Height 5' 10", Weight 195 lb.
- Debut September 18, 1934
- Final Game September 30, 1934
- Born March 2, 1910 in Beirne, AR USA
- Died October 2, 1967 in Mobile, AL USA
Orville Armbrust pitched well in his three games in the major leagues in September 1934, with a record of 1-0 and an ERA of 2.13 with the Washington Senators. His lone major league victory came over the New York Yankees in the final game that Babe Ruth appeared in a Yankee uniform, outdueling Hall of Famer Red Ruffing by a score of 5-3 in the final game of the 1934 season. Orville pitched in the Texas League from 1936-38.