Cognomen Njugu (Njugu 
) , around the world, is a rare family name. The family name Njugu is characteristic of Kenya, where it is quite a rare surname, Tanzania, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, Njugu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Njugu | Tanzania, Kenya, United States |