Dimitri Andreevich Usatov (February 22, 1847 - August 23, 1913) was a Russian tenor and vocal teacher. Born a serf to Dmitri Nikolayevich Sheremetev, he studied music with Camille Everardi at the Saint Petersburg Conservatory and sang at the Bolshoy Theatre from 1880 to 1889. There he sang the role of Lensky in Eugene Onegin in 1881 and the role of Andrei in Mazeppa in 1884. He later taught singing in Tbilisi, where his most famous pupil was Feodor Chaliapin, whom he not only trained, but fed, clothed and supported.