Family name Koine (Koine 
, Koiné, Коин 
) , all around the world, is a rare surname. The family name Koine is habitual in Kenya, where it is quite a rare surname, Belarus, where it is a rare surname, and Kyrgyzstan. Not in comparison with a country's population, the name is most common in Kenya, Myanmar, and Germany. Also, Koine is the forename as well as the last name.