Surname Njenku (Njenku 
) , across the world, is a rare cognomen. The family name Njenku is habitual in Cameroon, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, Njenku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Njenku | Nigeria, Cameroon, United Kingdom |