All over the world, San Marcos (San Marcos 
) is a very rare male first name. The forename San Marcos is characteristic of Libya, where it is a rare boy's name, and Mexico, where it is a very rare boy's name. More prevalently, San Marcos is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| San Marcos | Colombia, Philippines, Libya, Mexico, Guatemala |
May, Brian, Randy, Reyna, David, Dicri, Linda, Lidia, Lydia, Tania, Nacho, Norma, Nerie, Elias, Elena, Elsie, Elmer, Edith, Ernan, Ernie, Efren, Helen, Carla, Agnes, Angel, Susan, Ben, Roy, Rey, Lea, Luz, Mary, Mate, Alex, Cris, Ruth, Irene, Gina, John, Nida, Hero, Fely, Maria, Mario, Magno, Memes, Myrna, Sarah, Lina, and Ipu San Luis