Cognomen Janlu (Janlu 
) , in all the world, is an extremely rare surname. The surname Janlu is habitual in Venezuela, where it is an extremely rare surname, Malaysia, and Nigeria. Measured by absolute frequency, the name is most common in Nigeria, India, and Venezuela. More prevalently, Janlu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janlu | South Africa, Philippines, Nigeria, United States, India |