Johann Philipp Achilles Leisler.
Johann Philipp Achilles Leisler (1 August 1771 or 1772 – 8 December 1813) was a German physician and naturalist.
Leisler named a number of birds, including the Temminck's Stint, which he named after his friend Coenraad Jacob Temminck (1778-1858). He is commemorated in Leisler's Bat, Nyctalus leisleri, first described by Heinrich Kuhl (1797-1821).
He was a founding member of the Wetterauischen Gesellschaft für die gesamte Naturkunde (Wetterauische Society for Natural History) at Hanau.
His daughter, Luise von Ploennies (1803-1872), was known for her poetry and dramas.
- Populäres Naturrecht: Reines Naturrecht, 1799 - Popular natural law: Pure natural law.
- Nachträge zu Bechsteins Naturgeschichte Deutschlands, 1812 - Addenda to Bechstein's natural history of Germany.