Fanny Heldy (29 February 1888 – 13 December 1973) was a Belgian lyric soprano opera singer.
Heldy made her professional debut as a substitute in the premiere of Ivan the Terrible, by Raoul Gunsbourg (at La Monnaie, 26 November 1910).
Between 1914 and 1918 she sang in a number of major roles at Opéra de Monte-Carlo, making her first Paris appearance at the Opéra-Comique in 1917 as Violetta in La traviata.
[1] In December of that year, she sang the title role in Esclarmonde by Massenet during the opera's revival at the Paris Opéra.
[3] She retired in 1939, residing at Château de Mivoisin, a 36 square kilometre property located 1½ hours south of Paris in Dammarie-sur-Loing, Loiret.