| Birth Date: | 1953 12, df=y |
| Birth Place: | Budapest, Hungary |
| Height: | 1.66m (05.45feet) |
| Weight: | 55kg (121lb) |
| Sport: | Artistic gymnastics |
| Club: | Vasas, Budapest |
| Show-Medals: | yes |
Ilona Békési (born 11 December 1953) is a retired Hungarian gymnast. She competed at the 1968 and 1972 Summer Olympics in all artistic gymnastics events and finished in fifth and third place in the team competition, respectively. Her best individual result was fifth place on the uneven bars in 1972.