In all the world, Aldr (Alder 
, Aldring 
, Aldur 
) is quite a rare principally boy's, but very seldom feminine first name. The given name Aldr is habitual in Aland Islands, where it is quite a common feminine name, Israel, where it is quite a common primarily male, but very infrequently female name, and Nicaragua, where it is quite a rare male name. In absolute terms, it most frequently occurs in Israel, the Democratic Republic of the Congo, and Peru. Likewise, Aldr is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Alder | Germany, United Kingdom, Australia, Switzerland, United States |
| Aldring | Nicaragua, Philippines, Mexico, United States, Peru |
| Aldur | Germany, United Kingdom, United States, Iraq, Brazil |
| Aldr | Saudi Arabia, Iraq, Syria, United States |
Aldr is also a name for the fictitious and mythical characters: Alder MacGregor , the fictional character in The Wicker Man; Alder , character in Pokémon and Aldur , the deity and character in the fictional universe of The Belgariad, Belgarath the Sorcerer.