Cognomen เอกทัศน์ (Prime 
, เอกทัศน์ 
) , globally, is a common family name. The cognomen เอกทัศน์ is habitual in Grenada, where it is quite a common surname, Trinidad and Tobago, and Luxembourg, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Indonesia, France, and the United States. Also, เอกทัศน์ is the forename as well as the last name.