Family name ชัยชาญยุทธ (Chaichanyut 
, ชัยชาญยุทธ ) , around the world, is a rare last name. The cognomen ชัยชาญยุทธ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ชัยชาญยุทธ is the forename as well as the last name.