In the world, Watnakul (วัฒนกุล 
, Watnakul ) is a very rare predominantly male, but very infrequently feminine first name. The first name Watnakul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare predominantly masculine, but very infrequently female name. Predominantly, Watnakul is the last name as well as the forename.