Meagen Marree Nay (born 5 October 1988) is a competitive swimmer from Australia.

[1] She is the daughter of Robert Nay, who competed at the 1972 Summer Olympics in Munich, Germany.

Her brother, Amos Nay, was killed in July 2009, also in a car crash.

[2] Nay was due to swim the 200-metre backstroke and 200-metre freestyle at the 2009 World Championships, but returned home to grieve her brother's death after swimming in the preliminaries of the 4×100-metre freestyle relay, which earned a bronze medal in the final.

Nay trains alongside Stephanie Rice at the St Peter's Western Swimming Club under Michael Bohl.