| Eduardo Oncins | |
| Birth Date: | 10 December 1964 |
| Careerprizemoney: | $10,631 |
| Singlesrecord: | 0–5 |
| Highestsinglesranking: | No. 256 (6 August 1984) |
| Australianopenresult: | 1R (1983) |
| Frenchopenresult: | 1R (1984) |
| Doublesrecord: | 2–9 |
| Highestdoublesranking: | No. 230 (13 August 1984) |
| Australianopendoublesresult: | 2R (1982) |
| Frenchopenmixedresult: | 2R (1984) |
Eduardo "Edu" Oncins (born 10 December 1964) is a Brazilian former professional tennis player.
Oncins, who comes from São Paulo, represented Brazil in a Davis Cup tie against Ecuador in 1982.[1]
During his career he twice qualified for the singles main draw of a grand slam tournament, at the 1983 Australian Open and 1984 French Open.
His younger brother, Jaime Oncins, played on the professional tour in the 1990s.[2]