Miss República Dominicana 1975 was held on 1975-04-26 at La Concha Acústica del Hotel Embajador in Santo Domingo, República Dominicana, with 28 delegates. Milvia Sofía Troncoso Hernández (Dajabón) won and qualified for Miss Universo 1975; the first runner-up advanced to Miss Mundo 1975. The event was broadcast by Color Visión Canal 9.