Across the world, Theas (Theas 
) is an extremely rare epicene given name. Much more frequently, Theas is the last name as well as the forename.
Oyo, Julie, Jimmy, Nency, Elena, Ethel, Wilma, Marine, María, Magali, Sharon, Susana, Soizik, Sylvie, Alexis, Amalia, Cedric, Basile, Kévyn, Pascal, Pierre, Rangga, Linda, Leroy, Doyle, Delia, Malo, Mike, Anne, Reba, Dany, Luis, Ludo, Juan, Judy, Maria, Damien, Marta, Mabel, Shane, Anton, Aaron, Celia, Bendy, Betty, Kelia, Paula, Robin, Marã, and Gilles