Cognomen Gaguan (Gaguan 
) , around the world, is a rare last name. The family name Gaguan is characteristic of South-eastern Asia, particularly Philippines, where it is a rare surname. Much less frequently, Gaguan is the forename as well as the last name.
Jay, Roldan, Dialyn, Gareth, Lester, Lorena, Lolita, Jay-Ar, Julius, Jumile, Noriel, Nestor, Harold, Verlyn, Melanie, Melfred, Michael, Adelano, Bernabe, Rosalie, Rosalyn, Romnick, Romulo, Purita, Briant, Arlene, Mary, Roel, Ryan, Joel, Tiza, Nilo, Ariel, Ramie, Roger, Lindy, Roberto, Lydia, Josue, Joyce, Jerry, Julio, Jimmy, Irene, Margie, Marlon, Maxima, Shamer, Jason, and Rogelio