Around the world, Oasan (Oasan 
) is an extremely rare male first name. Much more frequently, Oasan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Oasan | Singapore, India, United States, Philippines |
Mae, Lucia, Timmy, Nilia, Novie, Efren, Henry, Honey, Fruto, Irene, Olnia, Oscar, Marina, Marvin, Maluza, Maxima, Albert, Aldrin, Angelo, Ayessa, Cherry, Philip, Louie, Rachel, Ruben, Karen, Ann, Rey, Luz, Jon, Tim, Val, Mary, Mila, Alex, Rhea, Leah, Joel, Juan, Ella, Eden, Edna, Maria, Madel, Alvin, Alfie, Aljon, Kyran, and Regina