Andrew Charles O'Dell FRSE FRGS FRSGS (1909–1966) was a Scottish geographer and antiquarian. A keen railway enthusiast he left a large collection of railway memorabilia to Aberdeen University, known as the O'Dell Collection.
Jack O'Dell (born Hunter Pitts O'Dell, August 11, 1923 – October 31, 2019) was an African-American activist writer and communist, best known for his role in the civil rights movement of the 1950s and 1960s.