Across the world, นิลวัฒน์ (นิลวัฒน์ 
, Nilawat 
, Nilwat ) is a rare largely masculine, but uncommonly feminine first name. The given name นิลวัฒน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare principally masculine, but very infrequently girly name. Likewise, นิลวัฒน์ is the last name as well as the forename.