Family name Sumy (Sumy 
, Суми 
) , in all the world, is quite a rare cognomen. The cognomen Sumy is habitual in Bangladesh, where it is a rare surname, Bolivia, and Israel, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Bangladesh, Indonesia, and the United States. Likewise, Sumy is the forename as well as the last name.