Surname Bonki (Bonki 
, Boontje 
) , throughout the world, is a rare cognomen. The surname Bonki is habitual in Netherlands, where it is quite a rare surname, Japan, where it is a very rare surname, and Germany. Not in comparison with a country's population, it is commonest in Netherlands, Japan, and Brazil. Also, Bonki is the forename as well as the last name.