Family name Хаякава (Sohachiro 
, Hayakawa 
, Хаякава 
) , around the world, is quite a rare last name. The cognomen Хаякава is characteristic of Paraguay, where it is quite a rare surname, Portugal, where it is a rare surname, and Japan. Measured by absolute frequency, it is the most numerous in Japan, Brazil, and the United States. Also, Хаякава is the forename as well as the last name.