Surname Cullu (Cullu 
) , globally, is a very rare cognomen. The cognomen Cullu is habitual in Turkey, where it is a very rare surname, Netherlands, and Australia. In absolute terms, this name is the most popular in Turkey, the United States, and Germany. Also, Cullu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cullu | Turkey, Germany, Australia, United States, India |