Corpus Domini, also known as Corpus Christi, is a notable religious holiday celebrated in San Marino. The holiday happens 60 days after Easter Sunday, landing on a Thursday. San Marino, one of the world's smallest countries, is deeply rooted in Catholicism, and as such, Corpus Domini is an important celebration for residents of this small nation. The holiday celebrates the tradition and belief in the body and blood of Jesus Christ and his presence in the Eucharist.

On this day, the residents of San Marino participate in processions and religious ceremonies, often led by the Catholic clergy. Churches are festively decorated, and a special mass takes place, which is attended by locals and visitors alike. These services feature the blessing of the bread and wine, symbolizing the body and blood of Christ. In the streets, you can witness a grand procession where the Blessed Sacrament is carried by a priest under a canopy. This is followed by the faithful who come out to participate in large numbers.

Also, the Corpus Domini holiday is not just a religious event but also a social event where families gather together to celebrate. Many San Marino residents take this opportunity to prepare special meals and have traditional feasts. Despite San Marino being a small country, the Corpus Domini is celebrated with extraordinary devotion and festivity. This holiday is a unique blend of religious solemnity and communal festivity, reflecting the deeply ingrained Catholic faith of the country. It showcases the strong sense of community, reverence, and tradition that the people of San Marino exhibit.