Cognomen Winich (Winich 
) , in all the world, is a very rare last name. The surname Winich is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, Winich is the forename as well as the last name.
Klawtanong, Naurnoom, Suepsai, Kornkaew, Pengchan, Tawinwan, Suwanpayak, Akaraboonlertyot, Thammatak, Wannachai, Yothapitak, Laohametmetha, Chantaramanee, and Wattanasunthon