Surname Окай (Okay 
, Okai 
, Okaj 
) , around the globe, is a common family name. The cognomen Окай is characteristic of Ghana, where it is quite a common surname, Turkey, and Liberia, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Ghana, Turkey, and Nigeria. Much less frequently, Окай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Okay | United States, Nigeria, Ghana, Indonesia, Turkey |
| Okai | United States, Nigeria, Ghana, Egypt, Indonesia |
| Okaj | Poland, United Kingdom, Albania, United States, Germany |
| Окай | Russia, Georgia, Kazakhstan, Ukraine |