Gemma di Manetto Donati (c. 3 March 1265 – after 1333), commonly shortened to Gemma Donati, was the wife of Italian poet Dante Alighieri.

Instead he wrote prolifically about his love-interest and muse Beatrice Portinari, whom he met when he was nine.

Her dowry was only 200 florins, which suggests that Dante's family had no substantial assets by the mid-1270s.

Nevertheless, an alliance with the Donati family through marriage was socially prestigious.

Documents suggest that as of June 1333 she was alive; however, her exact death date is unknown.