| Róbert Zimonyi | |
| Birth Date: | 18 April 1918 |
| Birth Place: | Sárvár, Hungary[1] |
| Death Date: | 2 February 2004 (aged 85) |
| Death Place: | Miami, Florida, U.S. |
| Height: | 170 cm |
| Weight: | 52 kg |
| Sport: | Rowing |
| Club: | Duna Budapesti-i Evezős Egylet Budapesti Kinizsi Vesper Boat Club |
| Show-Medals: | yes |
Róbert Zimonyi (18 April 1918 – 2 February 2004) was a Hungarian-born American rowing coxswain. He competed for Hungary in various events at the 1948 and 1952 Olympics and won a bronze medal in coxed pairs. After the Hungarian Revolution of 1956, he moved to the United States and became an American citizen in 1962.[2] With American teams, he won an Olympic gold medal in 1964[1] and a European bronze medal in 1965, both in the eights, and a gold medal at the 1967 Pan American Games in coxed fours.
Zimonyi left rowing in late 1960s, and did not coach. He was an accountant by training, but after immigrating to the United States, he worked at a brick company of a fellow rower John B. Kelly Sr. In 1963, he became an accountant at Sandmeyer Steel, and worked there until retiring by age in 1983.[3]
Zimonyi had a sister in Hungary. After that he moved to Florida to improve his health, together with his partner, Isabel Gressner.[4]