Surname Tachaya (Tachaya 
) , all around the world, is a very rare family name. The surname Tachaya is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Tachaya is the forename as well as the last name.
Kitdee, Sirisakpaisarn, Wannasupalarp, Suntorntem, Sangkakool, Niphatharataychaphuk, Jaroensuk, Pratumwan, Kantachai, Marcolino, Wanabovorndej, Tanapitipong, Luangarun, Punsuwan, Chokdechapat, Anderson, Ritngam, Poshing, Promsit, Maiprom, Huituma, Polsri, Thongkrajay, and Rattanasirithara