Miss República Dominicana 1991 was held on August 21, 1991. There were 24 candidates, representing provinces and municipalities, who entered. The winner would represent the Dominican Republic at Miss Universe 1991 and Miss International 1991. The first runner up would enter Miss World 1991. The second runner up would enter in Miss América Latina 1991. The remaining finalists entered different pageants.
| Miss Dominican Republic 1991 | |
|---|---|
| Date | August 21, 1991 |
| Venue | Hotel Euroctel, Puerto Plata, Dominican Republic |
| Broadcaster | Rahintel Canal 7 |
| Entrants | 25 |
| Debuts | Hato Mayor |
| Winner | Melissa Carolina Vargas Cardona Santiago |
Results edit
| Final Results | Contestant |
|---|---|
| Miss República Dominicana 1991 |
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| 1st Runner-up |
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| 2nd Runner-up |
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| 3rd Runner-up |
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| 4th Runner-up |
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| Semi-finalists |
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Delegates edit
| Represented | Contestant | Age | Height | Hometown |
|---|---|---|---|---|
| Azua | Christina Marlene Almanzar Fiallo | 21 | 1.76 | Santo Domingo |
| Bonao | Alexandra Lorein Reyes Fustran | 19 | 1.77 | Santo Domingo |
| Consuelo | Ana Miguelina Rosario Tavarez | 23 | 1.73 | San Pedro de Macorís |
| Distrito Nacional | Sarah Carolina Toledo Medrán | 17 | 1.80 | Pedro Brand |
| Duvergé | Viedma Estrella Collado Zaragoza | 20 | 1.83 | Santo Domingo |
| Elías Piña | Laura Mary Longo Hidalgo | 19 | 1.70 | Santo Domingo |
| El Seibo | Elizabeth Aimeé de los Santos Cruz | 24 | 1.83 | Santo Domingo |
| Hato Mayor | Lisa Ericka Córdoba Melilla | 17 | 1.68 | Hato Mayor del Rey |
| Jarabacoa | Ana María Cacénarez Báez | 22 | 1.84 | Santo Domingo |
| La Altagracia | Aliesca Alejandrina Sánchez de Rojas | 21 | 1.77 | Santo Domingo |
| La Romana | Joana Miledis Baltazar Moreno | 25 | 1.72 | La Romana |
| La Vega | Rosanna Patricia Rodríguez Portalatín | 18 | 1.79 | Concepción de La Vega |
| Santiago | Josefina Matos | 20 | 1.80 | Santiago |
| Moca | Yanina María Camacho Moncada | 18 | 1.71 | Moca |
| Peravia | Sandra Mercede Rodriguez Tavarez | 19 | 1.70 | Baní |
| Puerto Plata | Aurora Liz Rosario Hollingberry | 19 | 1.76 | Altamira |
| Salcedo | Martha Mercedes Durán de Espinal | 19 | 1.77 | Tenares |
| Samaná | Ada Margarita Ynoa Williams | 22 | 1.74 | Santa Bárbara de Samaná |
| San Cristóbal | Nina Yanilsa de Paula Martín | 17 | 1.80 | San Cristóbal |
| San Juan | Geanina Odelize Xavier de Lara | 24 | 1.78 | Santo Domingo |
| San Pedro de Macorís | Lissette Viviana de Villanueva Sosa | 21 | 1.79 | San Pedro de Macorís |
| Santiago | Melissa Carolina Vargas Cardona | 17 | 1.69 | Santiago de los Caballeros |
| Santiago Rodríguez | Caroli Edith Monsiel Gough | 22 | 1.73 | Santo Domingo |
| Santo Domingo de Guzmán | Stephanie María Olbino de la Rosa | 17 | 1.81 | Santo Domingo |
| Valverde Mao | Edita Marienne Santana Mora | 23 | 1.70 | Santo Domingo |