Family name Casalas (Casalas 
) , around the globe, is a rare cognomen. The cognomen Casalas is habitual in Latin America and the Caribbean, particularly Uruguay, where it is quite a rare surname, Argentina, where it is a very rare surname, and Colombia. Very seldom, Casalas is the forename as well as the last name.
Ana, Nestor, Óscar, Mariano, Marcela, Marcelo, Silvana, Claudia, Gabriel, Nelson, Gonzalo, Emanuel, Orlando, Marianna, Carolina, Jennifer, Jeronimo, Nattalia, Fernando, Esteban, German, Daniel, Roxana, Sara, Luis, Juan, Maria, Selma, Bruna, Ramon, Lucas, Julio, Marita, Monica, Miguel, Sandra, Alicia, Andrea, Angela, Belén, Rosana, Romina, Alejandro, and Valentina