Donald Thomas or Don Thomas may refer to:Donald A. Thomas, American engineer and former NASA astronaut D. M. Thomas, Cornish novelist, poet, and translator Donald Serrell Thomas (1934–2022), British writer of (primarily) Victorian-era historical, crime and detective fiction Donald Thomas, Bahamian high jumper Donald Thomas, American football guard Donald Thomas (1932–1977), stock car racing driver Donnie Thomas (1953–2017), American football linebacker Donald W. Thomas (1953–2009), university administrator and ecologist E. Donnall Thomas (1920–2012), American physician, developer of bone marrow transplant Donnie Thomas, former commander of Guantanamo's Joint Detention Group Don Thomas, alias of comic character of Blue Streak