Jennifer Gay Bishop, known by her stage name Jennifer Toye, was a British operatic soprano best known for performances with the D'Oyly Carte Opera Company in the 1950s and 1960s, including as Josephine in H.M.S. Pinafore, Mabel in The Pirates of Penzance and Yum-Yum in The Mikado. She later performed in musical theatre and opera with other companies.