Last name Tuchiya (Tuchiya 
) , around the world, is a very rare surname. The cognomen Tuchiya is habitual in Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname, Chile, and Mexico. Not in comparison with a country's population, it is the most numerous in Brazil, China, and Mexico. Much less frequently, Tuchiya is the forename as well as the last name.