Surname Gadwin (Gadwin 
) , in the world, is an extremely rare family name. The surname Gadwin is characteristic of Peru, where it is an extremely rare surname, Nigeria, and the United Kingdom. Much more frequently, Gadwin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gadwin | Nigeria, Philippines, Peru, South Africa, India |
Ada, Tangga, Ostria, Obcial, Yongco, Zamora, Marcial, Mandigma, Mendoza, Medrano, Miranda, Sanchez, Saligan, Saludes, Stewart, Almirol, Auxtero, Cobilla, Barredo, Domasig, Tagongtong, Caburnay, Javier, Loyola, Gloton, Garsin, Azor, Galo, Vega, Milan, Abrea, Palen, Ronas, Ganub, Nardo, Nuevo, Cornelio, Venta, Oliva, Opema, Santos, Sangma, Sabado, Solera, Chetty, Capati, Beukes, Garcia, Fonte, and Evangelista