| Branislav Rajačić | |
| Birth Date: | 21 November 1931 |
| Birth Place: | Sarajevo, Kingdom of Yugoslavia |
| Death Place: | Belgrade, FR Yugoslavia |
| Nationality: | Serbian |
| Coach Start: | 1958 |
| Coach End: | 1980 |
| Cyears1: | 1958–1961 |
| Cteam1: | Železničar Belgrade |
| Cyears3: | 1961–1965 |
| Cteam3: | OKK Beograd (assistant) |
| Cyears4: | 1965–1966 |
| Cteam4: | Partizan (youth) |
| Cyears5: | 1967 |
| Cteam5: | Dinamo Pančevo |
| Cyears6: | 1967–1969 |
| Cteam6: | Partizan |
| Cyears7: | 1969–1970 |
| Cteam7: | Partizan (youth) |
| Cyears8: | 1971 |
| Cteam8: | OKK Beograd |
| Cyears9: | 1971–1975 |
| Cteam9: | OKK Beograd (youth) |
| Cyears10: | 1973–1976 |
| Cteam10: | Yugoslavia (assistant) |
| Cyears11: | 1975–1979 1980 |
| Cteam11: | OKK Beograd |
Branislav Rajačić (Serbian: Бранислав Рајачић; 21 November 1931 – 30 September 1992[1]) was a Serbian professional basketball coach and administrator.