Globally, Дейдер (Дейдер ) is an extremely rare unknown gender first name. Much more frequently, Дейдер is the last name as well as the forename.
Deider, Dejder, and Deyder
Мария, Людмила, Светлана, and Александр
) is an extremely rare unknown gender first name. Much more frequently, Дейдер is the last name as well as the forename.