San Marcellino Church, Catholic church in San Teodoro, Genoa, Italy

San Marcellino Church is a circular-plan church built 1934–1936 to Luigi Daneri's design, set inside a hairpin bend of Via Bologna on a hillside. Its cylindrical volume, cut by large niches and clad in white Finale stone slabs, is topped by a reinforced-concrete dome by Pier Luigi Nervi with a stone lantern; a full-height pronao marks the west entrance.

A church dedicated to San Marcellino stood here from the 4th century, rebuilt by the Lombards in the 6th; the monks of San Siro took charge in 1019, and it was restored in 1472. The present church was rebuilt elsewhere on the site between 1934 and 1936 to Luigi Daneri's rationalist design, and the bell tower was finished in 1953.

The parish is dedicated to Saint Marcellinus, a dedication documented in the area since the 4th century, when a small chapel stood here before the Lombards rebuilt it as a church in the 6th century. The present building, rebuilt away from the original site in 1934-1936, keeps that ancient name in the San Teodoro district.

Visitors should check ahead for service times and visiting hours before planning a trip to the church. The location is accessible by public transportation in the San Teodoro neighborhood.

The dome is a reinforced concrete shell designed by Pier Luigi Nervi, crowned by a stone lantern. The bell tower, finished in 1953, stands detached in front of the church and repeats the same architectural features as the main cylinder.