Sant'Apollonia was a former Benedictine convent, founded in 1339, just north of the center of Florence, in Italy.
Some of the remaining structures are demarcated on three sides by via Ventisette Aprile, via Santa Reparata, and Via San Gallo, located about a block west of Piazza San Marco, just north of the city center. The structures of the convent, suppressed since the 19th-century, are now put to different uses. The small church building is still present on the corner of Via Ventisette Aprile and San Gallo.