Ödön Gróf (15 April 1915 – 16 January 1997) was a Hungarian swimmer who competed in the 1936 Summer Olympics. He was born in Neteča, Kingdom of Croatia-Slavonia, Austria-Hungary.
In the 1936 Olympics he won a bronze medal in the 4 × 200 m freestyle relay event. He was also seventh in his semifinal of the 400 m freestyle event and third in his first round heat of 100 m freestyle event and did not advance in both occasions.