Family name コー (Ko 
, Koh 
, Co , and others...) , across the world, is a prevalent last name. The cognomen コー is characteristic of Myanmar, where it is a prevalent surname, Singapore, where it is a widespread surname, and Hong Kong, where it is a common surname (explore the name in all countries). In absolute terms, the name is most common in South-eastern Asia, particularly Myanmar, Singapore, and Malaysia. Likewise, コー is the forename as well as the last name.