Across the world, Calasan (Calasan 
) is an extremely rare masculine forename. Predominantly, Calasan is the last name as well as the forename.
Mr, Susan, Sonja, Alvin, Amino, Ambis, Aurel, Atuwa, Carlo, Calil, Bojan, Perez, Potre, Randa, Rajko, Rados, Rosie, Dejan, Dario, Darko, David, Janko, Sammy, Salod, Sanja, Milos, Ms, Ana, Bal, Mona, Said, Anna, Cali, Ruth, Dora, Jose, Jamal, Juan, Nalo, Elsa, Elza, Vera, Olga, Obay, Maria, Marko, Manga, Milan, Tata, and Jaksa