Cognomen Waikay (Waikay 
) , across the world, is a very rare family name. The surname Waikay is characteristic of Nicaragua, where it is a rare surname, Venezuela, where it is an extremely rare surname, and the United States. Much less frequently, Waikay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Waikay | Canada, Nicaragua, Venezuela, United States |