Alexis Dupont (1796, or 1798 according to his death certificate – 29 May 1874) was a French operatic tenor who sang at the Opéra-Comique from 1821 to 1823 and the Paris Opera from 1826 to 1841. There he created a number of roles in operas by Rossini, Auber, Halévy and Meyerbeer. He had a significant association with Berlioz, creating the tenor solo in Roméo et Juliette in 1839; and he sang in the Mozart Requiem at Chopin's funeral in 1849.
He was born Pierre-Auguste Dupond (with a final d, which was changed to t), most likely in Paris, where he graduated from the Conservatory in 1818. He began his career as a concert singer, then made his debut at the Opéra-Comique in 1821 as Azor in Grétry's Zémire et Azor and also created the role of Charles in Auber's Emma, ou La promesse imprudente (7 July 1821). In 1823 Dupont left the Opéra-Comique in order to undertake further vocal training in Italy. After returning to France he made his debut at the Paris Opera in 1826 as Pylades in Gluck's Iphigénie en Tauride and continued to sing there until 1841.
In July 1827, he sang in Hector Berlioz's cantata La mort d'Orphée at its examination for the Prix de Rome. The examiners declared Berlioz's work unplayable, the Prix going to Ernest Guiraud. Berlioz planned to prove them wrong, and arranged a public performance for May of the following year, with Dupont again singing. In the event, Dupont was ill, and Berlioz had to substitute the "Resurrexit" from his Messe solennelle (1824) for the concert.