Matamoros (in Spanish Slayer of Saracens) is the name attributed to the Christians who persecuted Muslims and Jews during the Reconquista of the fifteenth century. It can also refer to:
Mexico
- Matamoros (Tamaulipas), also known as Heroica Matamoros, the main Mexican city in the state of Tamaulipas;
- Izúcar de Matamoros, Mexican city in the state of Puebla;
- Landa de Matamoros, Mexican city in the state of Querétaro;
- Matamoros (Coahuila), Mexican city in the state of Coahuila;
- Matamoros (Chihuahua), a Mexican citizen of the State of Chihuahua.