Cognomen Tangnoi (Tangnoi 
) , around the globe, is a rare last name. The family name Tangnoi is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, Tangnoi is the forename as well as the last name.
Mr, Kangsadarn, Karakachai, Chainarong, Kittiphat, Kalanyuta Eve, Chanikarn, Nateemark, Partomchai, Kalanyuta, Thiphaphan, Sorakrai, Niramol, Tosapon, Tairong, Lamphun, Pranee, Chugkit, Vinit, Piya, Anan, Nukkamon, and Phattarawan