Odd Flattum (born 9 August 1942) is a Norwegian sports official and politician for the Labour Party. He served as a deputy representative to the Norwegian Parliament from Buskerud during the terms 1981–1985 and 1985–1989. Flattum was mayor of Modum from 1991 to 2007. As a sports official Flattum has been president of the Norwegian Football Association and vice president of the Norwegian Olympic Committee.