Antonio Maria Ceriani (May 2, 1828 – March 2, 1907) was an Italian prelate, Syriacist, and scholar. Ceriani was born at Uboldo, in Lombardy. He was ordained a priest for his home diocese of Milan in 1852 and the same year was appointed keeper of the catalogue of the Biblioteca Ambrosiana (Ambrosian Library) at Milan. From 1857 he was one of the Doctors of the Ambrosiana of which in January 1870 he became Prefect, a post he kept until his death. Among his additional charges, from 1855 he was professor of oriental languages in the diocesan Major Seminary and from 1872 professor of paleography. From the 1880s he was in scholarly contact with the English medical doctor turned liturgical scholar, John Wickham Legg.