Ippolita Torelli (24 February 1501 - 25 August 1520) was a noblewoman and poet from Bologna, also notable as the wife of the writer Baldassarre Castiglione.
She was a daughter of Guido II and Francesca Bentivoglio, making her a member of the house of the lords of Bologna and a cousin of Barbara Torelli.
Aged 15, on 19 October 1516 in Mantua, she married Castiglione, a marriage favoured by his mother Luigia Gonzaga (1458–1542) and by the marchioness of Mantua Isabella d'Este and the consent of marquess Francesco II Gonzaga.
Castiglione celebrated his wife's virtue in a poem and they are portrayed together full-length in the 'Gran Sala' of Corte Castiglioni in Casatico di Marcaria and in a small painting on panel now in a private collection.
She died soon after her third child's birth and was buried in the Sanctuary of the Beata Vergine delle Grazie at the gates of Mantua in a tomb designed by Giulio Romano and with an inscription by her husband reading NON EGO NUNC VIVO CONIUNX DULCISSIMA VITAM, CORPORE NAMQUE TUO FATA MEAM ABSTULERUNT, SED VIVAM TUMULO CUM TECUM CONDAR IN ISTO IUNGENTURQUE TUIS OSSIBUS OSSA MEA (Now, sweetest bride, I do not live for my life, for fate has away my life with your body, but I will begin to live when I am laid with you in this tomb and my bones are united with yours).