Surname Ncai (Ncai 
) , throughout the world, is a very rare cognomen. The cognomen Ncai is habitual in Malaysia, where it is a very rare surname, South Africa, and the United States, where it is an extremely rare surname. Much less frequently, Ncai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ncai | Malaysia, South Africa, United States |