Cognomen กำนัน (Kamnan 
, Lamnan , Umphress 
) , around the globe, is a rare last name. The family name กำนัน is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and Thailand. Measured by absolute frequency, it most frequently occurs in the United States, Nigeria, and Thailand. Much less frequently, กำนัน is the forename as well as the last name.