Family name ไตรจักร (ไตรจักร 
, Tripak 
, Trichak 
) , globally, is a rare cognomen. The surname ไตรจักร is characteristic of Togo, where it is quite a rare surname, Thailand, where it is a rare surname, and Hungary, where it is a very rare surname. In absolute terms, it is commonest in Togo, Thailand, and the United States. Also, ไตรจักร is the forename as well as the last name.