Cognomen น้ำเชื้อ (Semren 
, Semmens 
, Namchuam ) , around the globe, is quite a rare surname. The family name น้ำเชื้อ is characteristic of Isle of Man, where it is quite a common surname, Australia, where it is quite a rare surname, and New Zealand. Not in comparison with a country's population, it most frequently occurs in Australia, the United Kingdom, and the United States. Much less frequently, น้ำเชื้อ is the forename as well as the last name.