Onorio Marinari (1627–1715) was an Italian Baroque painter and printmaker primarily active in Florence. Born into an artistic family, his father Sigismondo di Pietro Marinari was also a painter. Onorio trained with his cousin, Carlo Dolci, and was later influenced by artists Simone Pignoni and Francesco Furini. One of his notable works, a fresco in the Palazzo Capponi in Florence, dates to 1707. Marinari catered mostly to Florentine and Tuscan patrons, yet his talents extended beyond painting. In 1674, he published an essay on astronomy titled Fabbrica ed uso dell' Annulo Astronomico. Among his students was the noted still-life painter Bartolomeo Bimbi.