| Winner: | Rosalva Luna |
| Represented: | |
| Date: | September 5, 2003 |
| Presenters: | Ernesto Laguardia |
| Acts: | Benny Ibarra, Marco Antonio Solis |
| Entrants: | 38 |
| Placements: | 20 |
| Venue: | Teatro del Arte, Morelia, Michoacán, Mexico |
| Broadcaster: | Televisa |
| Withdraws: | Campeche, Coahuila, Chiapas, San Luis Potosí, Tabasco |
| Returns: | Baja California Sur, Estado de México, Guerrero |
| Before: | 2002 |
| Next: | 2004 |
Nuestra Belleza México 2003, the 10th Nuestra Belleza México pageant, was held at the Teatro del Arte of Morelia, Michoacán, Mexico on September 5, 2003. Thirty-eight contestants of the Mexican Republic competed for the national title, which was won by Rosalva Luna from Sinaloa, who later competed in Miss Universe 2004 in Ecuador where she was a Semifinalist in the Top 15. Luna was crowned by outgoing Nuestra Belleza México titleholder Marisol González. She was the first Sinaloense to win this Title.
The Nuestra Belleza Mundo México title was won by Yessica Ramírez from Baja California, who later competed in Miss World 2004 in China where she was a Semifinalist in the Top 15. Ramírez was crowned by outgoing Nuestra Belleza Mundo México titleholder Blanca Zumárraga. She is the first and only Bajacaliforniana to win this title.
This year was established the "Corona al Mérito" award. Recognition is given each year to a Queen or ex-Queen of Nuestra Belleza México, for their work and/or trajectory dignify human values and the image of Mexican women in beauty contests, hoping to motivate them to excel day. The first prize winner of the "Corona al Mérito" went to Carolina Salinas, Nuestra Belleza Nuevo León 2002 and Miss Expo World 2002.
| Final Results | Contestant | |
|---|---|---|
| Nuestra Belleza México 2003 | ||
| Nuestra Belleza Mundo México 2003-04 | ||
| Suplente/1st Runner-up |
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| 2nd Runner-up |
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| 3rd Runner-up |
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| Top 10 |
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| Top 20 |
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For the first time, the Preliminary Competition was held at the "Hoy" TV show a few days before of the final competition. Prior to the final telecast, all contestants competed in swimsuit during the preliminary competition, included corporal expression category.
In this program were chosen the Top 20 among the 38 candidates. Only the top 20 participated in the final night. The Preliminary Competition was hosted by Andrea Legarreta and Ernesto Laguardia.
The musical part was enlivened by: Belinda.
In addition, the names of the semifinalists who would compete on the final night they met.
| Award | Contestant | |
|---|---|---|
| Miss Photogenic |
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| Fuller Beauty Queen |
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| Lala Light Figure |
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| Miss Internet | ||
| Best National Costume |
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| State | Contestant | Age | Height (m) | Hometown |
|---|---|---|---|---|
| Aguascalientes | Liliana Leticia Bejarano González | 22 | 1.76 | Aguascalientes |
| Baja California | Yessica Guadalupe Ramírez Meza | 21 | 1.83 | Tijuana |
| Baja California Sur | Gabriela Berenice Martínez Cota | 19 | 1.79 | La Paz |
| Colima | Karina Gutiérrez Verduzco | 20 | 1.75 | Colima |
| Chihuahua | Karla Becerra Armigo | 21 | 1.77 | Cd. Juárez |
| Chihuahua | Zuszeth Luna González | 23 | 1.74 | Cd. Juárez |
| Distrito Federal | Paulina Michelle Alatorre | 22 | 1.80 | Mexico City |
| Durango | Jiapsi Bojórquez Martínez | 20 | 1.73 | Durango |
| Durango | Karla María Ayala Ortíz | 22 | 1.72 | Durango |
| Estado de México | Priscila Bustillos Larrañaga | 22 | 1.78 | Toluca |
| Guanajuato | Esther Alejandra Córdoba Toscano | 21 | 1.74 | León |
| Guanajuato | Norma González Barrón | 22 | 1.75 | León |
| Guanajuato | Rubí Valdés Silva | 21 | 1.73 | León |
| Guerrero | Lilian Cepeda Martínez | 21 | 1.68 | Iguala |
| Hidalgo | Grisel Franco Rivera | 20 | 1.79 | Huejutla |
| Jalisco | Ariadna Muro Esquivel | 22 | 1.72 | Guadalajara |
| Jalisco | Gladys Anaya Martín | 20 | 1.77 | Guadalajara |
| Jalisco | Paola Topete Vela | 21 | 1.70 | Guadalajara |
| Michoacán | Yaminah Márquez Pérez | 21 | 1.73 | Yurécuaro |
| Morelos | Yolanda Leal Tenorio | 21 | 1.76 | Cuernavaca |
| Nayarit | Alejandra del Río López | 20 | 1.70 | Tepic |
| Nuevo León | Alejandra Arredondo Méndez | 22 | 1.74 | Monterrey |
| Nuevo León | Alejandra Villanueva Campos | 20 | 1.70 | Monterrey |
| Nuevo León | Brisseida Myrella Moya Leal | 19 | 1.83 | Santiago |
| Puebla | Beatríz Herrero Sin | 20 | 1.70 | Tehuacán |
| Puebla | Lorelí Cázares Zaragoza | 23 | 1.73 | Puebla |
| Querétaro | Ivonne Obando González | 20 | 1.70 | Querétaro |
| Quintana Roo | Maritza López Morales | 22 | 1.71 | Chetumal |
| Sinaloa | Rosalva Yazmín Luna Ruíz | 21 | 1.76 | Los Mochis |
| Sonora | Amada Castillo López | 20 | 1.76 | Hermosillo |
| Sonora | Laura Almada Ibarra | 21 | 1.73 | Navojoa |
| Tamaulipas | Alejandra Celis Renero | 22 | 1.75 | Cd. Victoria |
| Tamaulipas | Yadira Patiño Cardoza | 22 | 1.75 | Matamoros |
| Tlaxcala | Renata Medina Soto | 22 | 1.75 | Tlaxcala |
| Veracruz | Ana Paola Pantoja Pola | 21 | 1.75 | Veracruz |
| Yucatán | Marisol Rojas Avila | 20 | 1.70 | Mérida |
| Zacatecas | Cecilia Magallanes López | 20 | 1.76 | Zacatecas |
| Zacatecas | Mariana Delgado Osuna | 20 | 1.72 | Zacatecas |
Contestants who had competed or will compete at other beauty pageants: