Alex or Alexander Dyer may refer to:

Alex Dyer (footballer, born 1965), retired English footballer Alex Dyer (footballer, born 1990), active Swedish-born, Montserratian footballer Alexander Brydie Dyer (1815–1874), American Civil War soldier See also Joseph Alexander Dyer, Scottish footballer for Aberdeen F.C., Plymouth Argyle, and Huddersfield in the 1940s