Cognomen Sioc (Sioc 
) , worldwide, is a rare surname. The family name Sioc is characteristic of Guatemala, where it is a rare surname, Philippines, and the United States, where it is an extremely rare surname. Much less frequently, Sioc is the forename as well as the last name.
Leo, Ceril, Belmi, Pedro, Romeo, Roger, Roque, Ruben, Lesly, Jaime, Josie, Jocel, Jessa, Jembo, Julie, Tyron, Norma, Elisa, Erlyn, Efren, Helen, Felix, Carie, Cardo, Carol, Abner, Alex, Adel, Ruby, Gina, Laya, Jose, Joel, Jean, Juan, Jhon, Isaac, Tony, Mario, Merin, Sunny, Aleda, Alvin, Allan, Anita, Argie, Arvin, Abeto, Eric, and Irene