Surname Sumlay (Sumlay 
) , globally, is a rare family name. The family name Sumlay is habitual in Philippines, where it is a rare surname, and Saudi Arabia. Very seldom, Sumlay is the forename as well as the last name.
Abo, Sarah, Sapia, Supia, Anwar, Amina, Bryan, Katak, Raida, Ribon, Datun, Jerry, Tayan, Norma, Noria, Esnia, Endal, Fahad, Oging, Udtag, Mariam, Marlou, Mizon, Mendi, Mamot, Malic, Abe, Ben, Bra, Mama, Melo, Mike, Said, Akob, Aisa, Aiza, Morato, Ayao, Jony, Joel, Tato, Taha, Tony, Toto, Omar, Usop, Mangi, Malay, Dhen, and Mosaib