| Custodio Dos Reis | |
| Fullname: | Custodio Dos Reis |
| Birth Date: | 30 November 1922 |
| Birth Place: | Rabat, Morocco |
| Discipline: | Road |
| Role: | Rider |
Custodio Dos Reis (30 November 1922 in Rabat, Morocco – 26 November 1959) was a French professional road bicycle racer. Born with Portuguese nationality, Dos Reis became French citizen in 1931. In 1950, Dos Reis won the 14th stage of the 1950 Tour de France.