Janse is a surname of the following people
Axel Janse (1888–1973), Swedish gymnast
Don Janse (?-1999), American vocal director and arranger
Jens Janse (born 1986), Dutch football player
Joseph Janse (1909–1985), Duth-American chiropractor
Lilian Janse (born 1973), Dutch politician
Mark Janse (born 1959), Dutch linguist
Olov Janse (1892–1985), Swedish archaeologist
Albert Janse Ryckman (1642–1737), American businessman and politician
Jaco Janse van Vuuren, paralympic athlete from South Africa
