| Octávio de Sá | |
| Fullname: | Octávio Augusto César de Sá |
| Birth Place: | Lourenço Marques, Mozambique |
| Death Date: | 1990 (aged 54 or 55) |
| Position: | Goalkeeper |
| Youthyears1: | 1953–1954 |
| Years1: | 1954–1960 |
| Years2: | 1966 |
| Clubs1: | Sporting Clube de Portugal |
| Clubs2: | Durban United |
| Caps1: | 76 |
| Caps2: | 3 |
| Goals1: | 0 |
| Goals2: | 0 |
Octavio de Sá (born 2 November 1935 in Lourenço Marques, Mozambique) was a football goalkeeper who played for Sporting Clube de Portugal Durban United. He is the father of South African international Roger De Sá.