Alahor in Granata is an opera in two acts by Gaetano Donizetti to an anonymous Italian libretto (indicated only with the initials "M.A.") after Jean-Pierre Claris de Florian's text Gonzalve de Cordoue, ou Granade reconquise (1793). However, it seems that the original basis of the libretto goes back to one by Felice Romani written for Meyerbeer in 1821, which in turn can be traced back through another iteration to begin with the De Florian version.

While Donizetti was spending most of 1825-26 in Palermo as musical director of the Teatro Carolino, Alahor in Granata was written to be presented in December 1825, but the premiere was delayed until 7 January 1826 and given at the Teatro Carolino with critical and popular success.

The score was eventually lost, but a copy - "not in the composer's hand" - was subsequently discovered in Boston in 1970. Finally, the autograph score came to light a few years later in Palermo. Some of the music was recycled into Emilia di Liverpool in 1828 and L'Elisir d'amore in 1832.