Alkin is a surname. Notable people with the surname include:

Elizabeth Alkin (1600–1655), English publisher, nurse, and spy John Alkin (born 1947), English actor Lee Everett Alkin (1937–2022), English psychic Marvin C. Alkin (born 1934), American academic

See also Alkan (disambiguation) Alken (disambiguation) Alkon (disambiguation)