Family name อธิวรรธก์ (อธิวรรธก์ 
) , around the globe, is an extremely rare cognomen. The surname อธิวรรธก์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much less frequently, อธิวรรธก์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| อธิวรรธก์ | Thailand |