Surname Guema (Guema 
, Гема 
) , all around the world, is a rare cognomen. The last name Guema is characteristic of Ukraine, where it is a rare surname, the Democratic Republic of the Congo, and Kyrgyzstan, where it is a very rare surname. In absolute terms, it is the most numerous in Ukraine, the Democratic Republic of the Congo, and Russia. Much less frequently, Guema is the forename as well as the last name.