| Winner: | Belgica Margarita Mota de la Cruz |
| Represented: | Pedernales |
| Date: | March 9, 1957 |
| Venue: | Palacio Federal, Santo Domingo, Dominican Republic |
| Debuts: | Beata (as Pedernales), Distrito de Santo Domingo (as Distrito Nacional) |
| Entrants: | 24 |
Señorita República Dominicana 1957 was held on March 9, 1957. The pageant had 24 delegates that represented their provinces. The delegates had to be born in the province they represented. The pageant was held at the federal palace. The competition was intros and dresses. Then, in the top 10, they start with the evening gown and swimsuit, and in the top 5, they answer questions, all in the same order. The winner would be in luxury in the city of San Felipe de Puerto Plata. The original pageant was in 1928, where they would crown a delegate from a province. It was canceled in 1930, when Trujillo became leader.
Top 10