Last name San Marcos (San Marcos 
) , all over the world, is a rare surname. The last name San Marcos is characteristic of Guatemala, where it is quite a rare surname, Philippines, where it is a rare surname, and Colombia, where it is a very rare surname. In absolute terms, it is the most numerous in Philippines, Guatemala, and Mexico. Very seldom, San Marcos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| San Marcos | Philippines, Guatemala, Libya, Mexico, Colombia |
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