The name Adler is a boy's name of German origin meaning "eagle". Adler and is often added to lists like Names with Animal Meanings and discussed in our forums with posts like "Outlandish this-or-that [girls]".
From the experts:
Adler is a German surname that is beginning to be used occasionally as a first and is among the stylish new German names for boys. Among the distinguished bearers of Adler as a last name are Freud colleague Alfred Adler, actress and influential acting teacher Stella Adler and Guns N' Roses drummer Steve Adler.