Family name Ивасэ (Iwase 
, Ивасэ 
) , around the world, is a rare last name. The last name Ивасэ is characteristic of Hong Kong, where it is a rare surname, Japan, and Singapore. In absolute terms, the name is most common in Japan, Brazil, and the United States. Also, Ивасэ is the forename as well as the last name.