Feuerschiff Elbe 3, Museum ship and lightvessel in Museumshafen Oevelgönne, Hamburg, Germany

The Feuerschiff Elbe 3 is a riveted steel-hulled lightvessel built in 1888 at Johann Lange's yard in Vegesack. Its two masts carry a main mast with three 500-watt lamps, and since 1936 a six-cylinder Mannheim diesel of 300 hp has replaced the middle mast, leaving a funnel. It lies in the Museumshafen Oevelgönne in Hamburg, listed as a Hamburg monument.

The ship was built in 1888 and first served under a different name on another river before being transferred to the Elbe. It received a diesel engine in 1936, which modernized it for that era.

The ship is named after its last station, Elbe 3, a lightvessel position northwest of Cuxhaven and northeast of Neuwerk in the German Bight. It had held the name Weser before, and another lightvessel, the Bürgermeister Abendroth, has also carried the name Elbe 3 since 1967 in Bremerhaven. Volunteers of the supporting association keep the vessel operational and take guests on trips in summer.

The ship lies in the Museumshafen Oevelgönne in Hamburg and can be visited on Wednesdays and Saturdays, and at other times by arrangement. In summer the volunteer crew takes guests on trips. Boarding is via the museum harbour quay; the ship is a Hamburg listed monument.

The ship is considered the world's oldest seaworthy lightvessel. Its steel hull is made of riveted plates, and the mainmast carried three lamps of 500 watts each. A crew of eleven lived aboard, relieved every two weeks. Since 1979 volunteers of the Museumshafen Oevelgönne association have kept it operational.