Ken Nelson may refer to:
Ken Nelson (American record producer) (1911–2008) Ken Nelson (British record producer) (born 1959) Kenneth Nelson (1930–1993), American actor Ken Nelson (businessman) (born 1962), British businessman Ken G. Nelson (born 1936), American politician in the Minnesota House of Representatives Ken Nelson (1954–2019), author of Bufo Alvarius: the Psychedelic Toad of the Sonoran Desert (1984)