| Ferenc Lenkei | |
| Birth Date: | 23 March 1946 |
| Birth Place: | Budapest, Hungary |
| Height: | 1.78 m |
| Weight: | 78 kg |
| Sport: | Swimming |
| Club: | BVSC, Budapest |
Ferenc Lenkei (born 23 March 1946) is a retired Hungarian breaststroke swimmer who won a bronze medal in the 4 × 100 m medley relay at the 1966 European Aquatics Championships. He finished sixth in the same event at the 1964 Summer Olympics.