Surname Kelwyn (Kelwyn 
) , across the world, is an extremely rare last name. The surname Kelwyn is habitual in Venezuela, where it is an extremely rare surname, Brazil, and the United States. Much more frequently, Kelwyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kelwyn | Australia, China, United States, South Africa, Brazil |
Teo, Chagas, Crasto, Pender, Pillay, Davies, Dsouza, Harris, Vieira, Warlow, Martins, Sellers, Almeida, Cardoso, Batista, Pereira, Prestes, Ribeiro, Anderson, Carvalho, Branford, Ferreira, Araujo, Soares, Santos, Mebane, Lima, Love, Hill, Wild, Yung, Silva, Sousa, Souza, Costa, Brito, Oliveira, Ramos, David, Gomes, Leite, Levie, Lyken, Hough, White, Macedo, Morais, Mendes, Rocha, and Rodrigues