Cognomen Сина (Sina 
, Cena , Syna 
) , around the globe, is a common surname. The family name Сина is characteristic of Albania, where it is a common surname, Kosovo, where it is quite a common surname, and North Macedonia (explore the name in all countries). In absolute terms, the name is most common in India, Indonesia, and Philippines. Also, Сина is the forename as well as the last name.