Cognomen سيدينا (Seydina 
, Sedina 
, سيدينا) , all over the world, is quite a rare surname. The last name سيدينا is characteristic of Senegal, where it is quite a rare surname, Czechia, and Slovakia, where it is a rare surname. In absolute terms, it is the most numerous in Senegal, Czechia, and Indonesia. More frequently, سيدينا is the forename as well as the last name.