Marco Coltellini (24 May 1724, Montepulciano – November 1777, Saint Petersburg) was an Italian opera tenor, librettist and printer.Coltellini embarked on a career in the Church, but had to leave after fathering four daughters. He set up a printing shop in Livorno to publish the works of Enlightenment figures such as Francesco Algarotti and Cesare Beccaria.