Wilhelmenia Fernandez (b. 1949) is an opera singer who appeared in Episode 2875 from Sesame Street’s 22nd season. Auditioning for a role in "La Grouchiata", Fernandez loses the part to Grundgetta, before Placido Flamingo finally places her in the production just before it begins.
Fernandez made her operatic debut as Bess in Gershwin's Porgy and Bess in the United States, and in France as Musetta in Puccini's La bohème (with Plácido Domingo). She later went on to play roles in Carmen and Carmen Jones, and has made several recordings of opera standards and spirituals.