Marie-Antoinette Guy-Stéphan (18 November 1818 - 20 August 1873) was a French dancer who triumphed at Spanish theaters between 1843 and 1851.

[1] Richard Ford, travel writer, arrived in Spain in 1830 and wrote about the rivalry between Guy-Stéphan and Maria Brambilla, specialist in Donizetti and first dancer of La Scala.

Guy-Stéphan was a favourite of Marquis de Salamanca so when Fuoco became a favorite dancer of general Narvaez theatrical rivalry turned into a political one.

[3] She created roles including in Néméa, ou l'Amour vengé (1864), by Arthur Saint-Léon.

[3] Cyril W. Beaumont had a painting after J. H. Lynch showing Guy-Stéphan dancing 'Las Boleras de Cadiz' from the ballet divertissement L'Aurore at Her Majesty's Theatre in London in 1843 (now in the collection of the Victoria & Albert Museum),[4] and an engraving of Guy-Stéphan dancing in the same ballet appears in La Ilustración of 23 March 1850.