Globally, Сеін (Сеін ) is an extremely rare unknown gender given name. Much more frequently, Сеін is the last name as well as the forename.
Sein, and Syein
Олег, Володимир, Анатолій, Олексій, Валерій, Михайло, Сергій, Віктор, Дмитро, Галина, Андрій, Микола, Євген, Павло, Юрій, Ігор, Олександр, and Станіслав
) is an extremely rare unknown gender given name. Much more frequently, Сеін is the last name as well as the forename.