| Velloso | |
| Fullname: | Oswaldo de Barros Velloso |
| Birth Date: | 25 August 1908 |
| Birth Place: | Corumbá, Brazil |
| Height: | 1.74 m[1] |
| Years1: | 1926–1928 |
| Years2: | 1928–1935 |
| Clubs2: | Fluminense |
| Caps1: | ? |
| Goals1: | ? |
| Caps2: | ? |
| Goals2: | ? |
| Nationalyears1: | 1930 |
| Nationalteam1: | Brazil |
| Nationalcaps1: | 3 |
| Nationalgoals1: | 0 |
Oswaldo de Barros Velloso (25 August 1908 – 8 August 1996) was a Brazilian football player. He has played for Brazil national team at the 1930 FIFA World Cup finals.
Bahiano de Tênis: 1927
Brazil: 1931