San Marcello may refer to:
San Marcello Pistoiese, a frazione of the comune of San Marcello Piteglio in the Italian province of Pistoia San Marcello (Ancona), a comune in the Italian province of Ancona Poggio San Marcello, a comune, also in the province of Ancona San Marcello al Corso, a church in Rome 7481 San Marcello, an asteroid
See also Pope Marcellus I, also known as Saint Marcellus I or San Marcello