Cognomen Rosielyn (Rosielyn 
) , in the world, is an extremely rare last name. The surname Rosielyn is habitual in Philippines, where it is an extremely rare surname, and the United States. Much more prevalently, Rosielyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosielyn | Saudi Arabia, United Arab Emirates, Philippines, United States, New Zealand |
Tan, Flores, Iduyan, Montana, Morales, Mendoza, Sanchez, Solermo, Arbatin, Agustin, Pascual, Ramirez, Rosales, Domingo, Narciso, Fuentes, Castillo, Bataller, Bautista, Gonzales, Rodriguez, Dela Cruz, Ferrer, Villar, Valdez, Tejada, Suan, Cruz, Arope, Cadiz, Perez, Ramos, Rosal, Roxas, Reyes, Lopez, Hernandez, Frias, Santos, Alegre, Aquino, Castro, Cuizon, Bahala, Garcia, Gamboa, Lapana, Javier, Manalo, and Francisco