| Eleutério | |
| Fullname: | António Eleutério dos Santos |
| Birth Date: | 10 February 1928 |
| Birth Place: | Portugal |
| Position: | Midfielder |
| Clubs1: | FC Porto |
| Nationalyears1: | 1954 |
| Nationalteam1: | Portugal |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
António Eleutério dos Santos (born 10 February 1928) simply Eleutério, is a former Portuguese footballer who played as a midfielder.