Cognomen Onglu (Onglu 
) , in the world, is a rare last name. The surname Onglu is habitual in Turkey, where it is a rare surname, Switzerland, where it is a very rare surname, and Germany. In absolute terms, the name is most common in Turkey, Germany, and China. Also, Onglu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onglu | Germany, Switzerland, India, China, Turkey |