Cognomen Фукаи (Fukai 
, Фукаи 
) , throughout the world, is a rare surname. The cognomen Фукаи is characteristic of Hong Kong, where it is a rare surname, Singapore, and Japan, where it is a very rare surname. Not in comparison with a country's population, the name is most common in Brazil, Japan, and the United States. More prevalently, Фукаи is the forename as well as the last name.