Diána Reményi (born 4 April 1986 in Budapest) is a Hungarian former swimmer, who specialized in breaststroke and individual medley events.

She is also a member of Budapesti Spartacus SC, and is coached and trained by György Turi.

Reményi made her international debut at the 2002 European Junior Swimming Championships in Linz, Austria.

[1][2] She also helped out the Hungarians (Nikolett Szepesi, Katalin Taray, and Renata Papp) to take a bronze medal in the women's 4×100 m medley relay (4:16.44).

She posted a FINA A-standard entry time of 2:28.12 from the World Championships in Barcelona, Spain.