Last name Исава (Isawa 
, Исава 
) , worldwide, is a rare cognomen. The surname Исава is characteristic of Jordan, where it is a rare surname, Nigeria, where it is a very rare surname, and Brazil. Not in comparison with a country's population, it is the most numerous in Nigeria, Brazil, and the United States. More prevalently, Исава is the forename as well as the last name.