Family name กาวัน (Gavan 
, Gawan 
, กาวัน 
) , in all the world, is quite a common last name. The cognomen กาวัน is habitual in Romania, where it is quite a rare surname, Bahamas, and Philippines. In absolute terms, the name is most common in Philippines, Romania, and Nigeria. Also, กาวัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gavan | Romania, Australia, Philippines, Nigeria, India |
| Gawan | United Kingdom, Philippines, Nigeria, United States, India |
| กาวัน | Thailand |