Worldwide, Casás (Casás 
) is an extremely rare unknown gender forename. Much more frequently, Casás is the last name as well as the forename.
Mª, Miriam, Miguel, Silvia, Carlos, Belén, Rafael, Romina, Lucía, Jacobo, Javier, Tamara, Teresa, Nahuel, Noelia, Nelson, Elías, Vanesa, Mariña, Martina, Manuela, Matías, Maggie, Manuel, María, Marcia, Ana, Sara, Caly, Lois, Luis, Juan, Elsa, Mario, Sonia, Alina, Mónica, Carla, Pablo, Raúl, Laura, Lidia, José, Jorge, Julio, Tania, Elena, Yaiza, Paula, and Silvana