Onorio Marinari (1627 – 5 January 1715) was an Italian painter and printmaker of the Baroque period, active mainly in Florence.

His father, Sigismondo di Pietro Marinari, was also a painter, and he trained with his cousin, Carlo Dolci, later being also influenced by Simone Pignoni and Francesco Furini.

He worked mainly in Florence for Florentine and Tuscan clients, but he did not devote himself only to painting.

In fact, in 1674, he published an essay on astronomy entitled Fabbrica ed uso dell' Annulo Astronomico.

This article about an Italian painter born in the 17th century is a stub.