Last name Haiwa (海娃 
, Haiwa 
) , around the globe, is a rare family name. The family name Haiwa is characteristic of Cameroon, where it is a rare surname, Tanzania, where it is a very rare surname, and China. Not in comparison with a country's population, the name is most common in China, Cameroon, and Nigeria. More frequently, Haiwa is the forename as well as the last name.