Surname テルイ (テルイ 
, Terui 
) , all over the world, is a rare cognomen. The last name テルイ is habitual in Japan, where it is a rare surname, Brazil, where it is a very rare surname, and Mexico. In absolute terms, it is the most numerous in Japan, Brazil, and the United States. More prevalently, テルイ is the forename as well as the last name.