Frank Orum Waddey (August 21, 1905 – October 21, 1990) was a Major League Baseball player. Waddey played in one season, for the St. Louis Browns in the 1931 season. He had six hits, two RBIs and three runs scored in 14 games. He batted and threw left-handed.
An alumnus of the Georgia School of Technology, Waddey was born in Memphis, Tennessee and died in Knoxville, Tennessee. He married Alberta Gilbertson in 1930. He was a member of the Delta Sigma Phi fraternity and the ANAK Society while at Georgia Tech, as well as the varsity baseball and football teams from 1927 to 1929.