Donald Thomas or Don Thomas may refer to:
- People
- Donald A. Thomas (born 1955), American engineer and former NASA astronaut
- Donald Michael Thomas (born 1935), Cornish novelist, poet, and translator
- Donald Serrell Thomas (born 1926), British writer
- Donald Thomas (athlete) (born 1984), Bahamian high jumper
- Donald Thomas (American football) (born 1985), American football guard
- Donnie Thomas (American football), American football linebacker chosen in the 1976 NFL Draft
- Donald Thomas (racing driver), former NASCAR Cup Series driver
- Donald W. Thomas (1953–2009), university administrator and ecologist
- E. Donnall Thomas (1920 – 2012), American physician, developer of bone marrow transplant
- Fiction
- Don Thomas of Blue Streak (comics)
Famous quotes containing the word thomas:
“Ants are so much like human beings as to be an embarrassment. They farm fungi, raise aphids as livestock, launch armies into war, use chemical sprays to alarm and confuse enemies, capture slaves, engage in child labor, exchange information ceaselessly. They do everything but watch television.”
—Lewis Thomas (b. 1913)