Dennis Wilson (1944–1983) was an American musician and one of the original members of The Beach Boys.

Dennis or Denis Wilson may also refer to: Dennis Wilson (composer) (1920–1989), British composer of television scores Dennis Wilson (poet) (1921–2022), British poet of World War II Dennis Main Wilson (1924–1997), British television and radio producer Denis Wilson (footballer) (1936–2026), English footballer Dennis Wilson (Kansas politician) (1950-2020), a member of the Kansas state legislature E. Denis Wilson, American physician after whom Wilson's temperature syndrome is named