Francesco Nasini (Piancastagnaio, either 1611 or 1621– Castel del Piano, 1695) was an Italian painter of the Baroque period, active mainly in towns outside of Siena, Italy. Francesco was the progenitor of a pedigree of painters. He had a brother, Antonio Annibale Nasini. Most famous of all the family was his son Giuseppe Nicola Nasini (1664-1736), who traveled to Rome and had widespread patronage. Francesco was also the father of Antonio Nasini (1631-1716), who like his father, was mainly active near Siena. Finally, Apollonio Nasini, son of Giuseppe, was also a painter of some distinction.