Surname San Mateo (San Mateo 
) , throughout the world, is quite a rare last name. The surname San Mateo is characteristic of Philippines, where it is quite a rare surname, Saudi Arabia, where it is a very rare surname, and Spain. Measured by absolute frequency, it is commonest in Philippines, Indonesia, and Spain. Very seldom, San Mateo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| San Mateo | Philippines, Spain, United States, Indonesia, Saudi Arabia |
Jm, Gina, Lani, Lido, Lucy, Jose, John, Joan, Joel, Judy, Jill, Tess, Noel, Maria, Mario, Marta, Marco, Susan, Alvin, Allan, Alona, Aljon, Gema, Dian, Ryan, Rudy, Meg, Bea, Ron, Rex, Lea, Luz, Joy, Val, Mark, Mila, Ariel, Mike, Myla, Alex, Anna, Armi, Amie, Aida, Kara, Raul, Rita, Ruth, Myra, and Arnel