Donald Lee O'Riley
- Bats Right, Throws Right
- Height 6' 3", Weight 205 lb.
- High School Northeast High School (Kansas City)
- Debut June 20, 1969
- Final Game August 1, 1970
- Born March 12, 1945 in Topeka, KS USA
- Died May 2, 1997 in Kansas City, MO USA
Pitcher Don O'Riley was shot in a robbery while working in a convenience store in Kansas City, MO and died at age 52. O'Riley got off a shot that wounded the perpetrator, but his own wounds proved fatal. His playing career ended in 1973 when he injured his elbow in a motorcycle accident.