Family name 在德 (Zaide 
, 在德 ) , in the entire world, is quite a rare surname. The cognomen 在德 is habitual in Aland Islands, where it is quite a common surname, Philippines, where it is quite a rare surname, and Libya, where it is a rare surname. In absolute terms, it is commonest in Philippines, Mexico, and China. Likewise, 在德 is the forename as well as the last name.