Tanis is a feminine given name. Notable people with the name include:

Tanis (musician) (Tanis Chalopin, born 1993), French-Singaporean singer-songwriter Tanis Chandler (born 1924), American film actress Tanis MacDonald, Canadian poet and literature professor Tanis Rideout, Canadian poet, journalist and novelist Tanis S'eiltin (born 1951), American Tlingit artist

See also James Tanis (born 1965), Papua New Guinean politician Tanis (disambiguation)