Nuestra Belleza México 1998 was the 5th Nuestra Belleza México pageant. The contest was held for the second consecutive time at the Salon Teotihuacan of the Centro Internacional de Convenciones Acapulco of Acapulco, Guerrero, Mexico on September 19, 1998. Thirty-two contestants of the Mexican Republic competed for the national title, featuring the first back to back victories in Nuestra Belleza Mexico history: Silvia Salgado from Nuevo León was crowned by outgoing Nuestra Belleza México titleholder Katty Fuentes, also from Nuevo León. Salgado competed at Miss Universe 1999 in Trinidad and Tobago where she was a Semi-finalist in the Top 10. She was the second Neoleonesa to win this title.
The Nuestra Belleza Mundo México title was won by Vilma Zamora from Guanajuato, who later competed at Miss World 1998 in Seychelles. Zamora was crowned by outgoing Nuestra Belleza Mundo México titleholder Blanca Soto. She was the first Guanajuatense to win this title.
| Final Results | Contestant | |
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| Nuestra Belleza México 1998 | ||
| Nuestra Belleza Mundo México 1998 | ||
| Suplente/1st Runner-up |
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| 2nd Runner-up |
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| 3rd Runner-up |
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| Top 11 |
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| State | Contestant | Age | Height (m) |
|---|---|---|---|
| Aguascalientes | Cecilia Colombe Gutiérrez Reyes | 19 | 1.70 |
| Baja California | Aneli Lucero Barajas López | 19 | 1.83 |
| Baja California Sur | Borinquen Telles Vargas | 19 | 1.70 |
| Campeche | Kathia Patricia Villegas Heredia | 19 | 1.78 |
| Coahuila | Teresa Roldán Rodríguez | 20 | 1.75 |
| Colima | Denisse Zarai Guzmán | 19 | 1.75 |
| Chiapas | Nubia Venicia León Montoya | 19 | 1.68 |
| Chihuahua | Clarissa Carrera Aguilera | 19 | 1.76 |
| Distrito Federal | Karla Blancarte Figueroa | 21 | 1.73 |
| Durango | Alejandra Fernández de Castro Sosa | 19 | 1.75 |
| Estado de México | Karen Maya Helm | 20 | 1.73 |
| Guanajuato | Vilma Verónica Zamora Suñol | 19 | 1.78 |
| Guerrero | Paulina Crofton Nadal † | 23 | 1.81 |
| Hidalgo | Laura Gabriela Pérez Cuevas | 18 | 1.68 |
| Jalisco | Alejandra Morales Macias | 19 | 1.78 |
| Michoacán | Giovanna Páramo Garduño | 20 | 1.75 |
| Morelos | Arlette Natera Martínez | 22 | 1.68 |
| Nayarit | Claudia Liliana González Ramos | 18 | 1.80 |
| Nuevo León | Silvia Salgado Cavazos | 20 | 1.75 |
| Oaxaca | Marbella López Nuñez | 22 | 1.68 |
| Puebla | Luisa Fernanda Díaz Maldonado | 19 | 1.69 |
| Querétaro | Myriam Adaliz Domínguez Yemez | 22 | 1.69 |
| Quintana Roo | Solange Rivera Astudillo | 21 | 1.70 |
| San Luis Potosí | María Cristina Ramírez Portales | 21 | 1.72 |
| Sinaloa | Kathya Verenice Morales Luna | 23 | 1.78 |
| Sonora | Lina Mercedes Samaniego Jiménez | 18 | 1.68 |
| Tabasco | Edith López Vidaurri | 22 | 1.75 |
| Tamaulipas | Nayma Karina Balquiarena Pérez | 18 | 1.69 |
| Tlaxcala | Fabiola Sánchez Wadw | 21 | 1.68 |
| Veracruz | Maribel Rodríguez Gasca | 18 | 1.70 |
| Yucatán | María Teresa Campos Ríos | 20 | 1.77 |
| Zacatecas | Claudia Susana Landeros Botello | 21 | 1.72 |