Last name กำมะลอ (Quack 
, Kammalo 
, กำมะลอ) , around the globe, is quite a rare surname. The last name กำมะลอ is habitual in Western Europe, particularly Germany, where it is quite a rare surname, Switzerland, where it is a rare surname, and Netherlands. Not in comparison with a country's population, it is commonest in Germany, Netherlands, and the United States. Very seldom, กำมะลอ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Quack | Netherlands, Switzerland, United States, Germany, France |
| Kammalo | India |