The Dornier Libelle (en:"Dragonfly I"), also designated Do A, was a German open-cockpit, all-metal, parasol wing, monoplane flying boat aircraft, with partly fabric-covered wings. There was three versions of the seaplane version; the prototype, first version, and improved version (the Libelle 2). A landplane version, built without sponsons and fitted with a fixed tailwheel undercarriage was produced as the Dornier Spatz.
A Dornier Libelle crashed into the sea off Milford beach in Auckland, New Zealand on 12 December 1929, killing both crewmen.
A Libelle II VQ-FAB, manufacturers number 117 built in 1925, which operated in Fiji, is displayed in the Deutsches Museum in the centre of Munich.