Alcmonavis is a basal genus of avialan dinosaur that during the Late Jurassic lived in the area of present Germany.

Amateur paleontologist Roland Pöschl systematically excavates the Alte Schöpfel quarry on the Schaudiberg, at Mühlheim near Mörnsheim in Bavaria.

In 2019, the type species Alcmonavis poeschli was named and described by Oliver Walter Mischa Rauhut, Helmut Tischlinger and Christian Foth.

The fossil is part of the collection of the Bayerische Staatssammlung für Paläontologie und Geologie after being purchased by the Bavarian state.

The ulna has a single and clearly distinct oval depression in its upper articulation surface, next to a small laterally projected process.

The hand claws possess well-developed bosses for the flexor tendons, which processes are expanded at the palmar side.