| Ionel Sânteiu | |
| Birth Date: | 6 March 1948 |
| Singlesrecord: | 6–17 |
| Highestsinglesranking: | No. 272 (14 June 1976) |
| Frenchopenresult: | 1R (1975) |
| Wimbledonresult: | 1R (1973) |
| Doublesrecord: | 6–16 |
| Highestdoublesranking: | No. 236 (12 December 1976) |
| Frenchopendoublesresult: | 1R (1972, 1975, 1976) |
Ionel Sânteiu (born 6 March 1948) is a former Romanian tennis player. His highest ATP ranking was number 272 achieved on 14 June 1976.