Surname Douzaine (Lusin 
, Dusin , Ducena 
) , around the world, is quite a rare cognomen. The surname Douzaine is habitual in Slovenia, where it is quite a rare surname, Malaysia, where it is a rare surname, and Estonia. Measured by absolute frequency, it is the most numerous in South-eastern Asia, particularly Philippines, Indonesia, and Malaysia. Likewise, Douzaine is the forename as well as the last name.