Étienne Aignan (9 April 1773 – 21 June 1824) was a French translator, political writer, librettist and playwright born in Beaugency, Loiret.
In 1814 he was made a member of the Académie française, replacing Bernardin de Saint-Pierre in Seat 27.
- a verse translation of the Iliad,
- translations of Pope, Goldsmith, and Elisa Hervey,
- the play La mort de Louis XVI: tragédie en trois actes (Paris 1793) covering the trial and execution of King Louis XVI,
- librettos for the operas Maria Seski (1799), Nephtali, ou les Ammonites by Blangini (Ballard, Paris 1806), and the Arthurian Arthus de Bretagne,
- The Condition of the Protestants in France (1818) and
- Histoire du jury (A. Eymery, Paris 1822).