Cognomen โตไร่ (Torai 
, โตไร่) , all around the world, is quite a common last name. The surname โตไร่ is habitual in Japan, where it is quite a rare surname, Tunisia, where it is a rare surname, and Hungary. Not in comparison with a country's population, it is commonest in Japan, India, and Tunisia. Much less frequently, โตไร่ is the forename as well as the last name.