Cognomen Nyakai (Nyakai 
) , globally, is a rare last name. The surname Nyakai is habitual in Tanzania, where it is a rare surname, and India, where it is an extremely rare surname. Much less frequently, Nyakai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nyakai | India, Tanzania, South Africa |