Around the globe, Tseiko (Tseiko , Цейко ) is an extremely rare epicene given name. Much more frequently, Tseiko is the last name as well as the forename.
Тсеико, Цеико, and Цэйко
Mr, Ms, and Pavel
, Цейко 
) is an extremely rare epicene given name. Much more frequently, Tseiko is the last name as well as the forename.