Kostyantyn
Kostyantyn is a given name of Slavic origin, commonly found in Ukraine and other Eastern European countries. It is the Ukrainian form of the name Constantine, which derives from the Latin name Constantinus, a diminutive of Constans, meaning "constant" or "steadfast." The name has a long history, notably associated with Roman emperors, including Constantine the Great, who played a significant role in the Christianization of the Roman Empire.
In Ukrainian culture, Kostyantyn is a popular male name, often bestowed to honor family members or to