Kellyn is a given name that may refer to:
Kellyn Acosta (born 1995), American soccer player Kellyn Beck, designer of video game Defender of the Crown Kellyn George, Dominican medical researcher Kellyn Morris (born 1989), Australian actress and singer Kellyn Plasschaert (1958–2009), American actress Kellyn Tate (born 1976), American softball coach Kellyn Taylor (born 1986), American distance runner