SS Adler

Adler was the name of four ships of Argo Line, Germany
 * SS Adler (1884), purchased from Norddeutscher Lloyd in 1887, sold in 1889.
 * SS Adler (1900), in service 1900–38, sold to Italy
 * SS Adler (1938), In service 1938–40, requisitioned by Kriegsmarine.
 * SS Adler (1950), in service 1950–66, sold to the Philippines