Family name กุมุทนาถ (กุมุทนาถ 
) , all over the world, is an extremely rare last name. The last name กุมุทนาถ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, กุมุทนาถ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กุมุทนาถ | Thailand |
จิตติภิญโญ, and ทิพย์เสถียร