In the entire world, นิลรัตน์ (นิลรัตน์ 
, Nilat 
, Ninrat ) is quite a rare largely girly, but seldom masculine forename. The given name นิลรัตน์ is characteristic of Thailand, where it is quite a rare dominantly female, but infrequently male name, and India, where it is a very rare unisex name. Likewise, นิลรัตน์ is the last name as well as the forename.