Niccolò Nannetti was an Italian painter of the Rococo period. Nothing is known about his training. It is documented that he was involved in the frescoing of the cloister of Santo Spirito in Florence around 1700. Between 1705 and 1748, Nannetti is documented as a member of the Accademia del Disegno. From 1709, he worked on several fresco projects in Pistoia, mainly for ecclesiastical commissioners. He also painted frescoes in villas and palazzi of private commissioners, for instance in Pistoia and Rome, mostly depicting mythological themes. Nannetti also painted numerous altarpieces for churches in Florence and the surrounding area.