Surname Каяно (Gonbei 
, Kayano 
, Каяно) , globally, is a rare family name. The last name Каяно is characteristic of Brazil, where it is a rare surname, Japan, where it is a very rare surname, and Chile. In absolute terms, the name is most common in Brazil, Japan, and the United States. More frequently, Каяно is the forename as well as the last name.