Corpus Christi (Latin for Body of Christ) is a Western Catholic solemnity. It is also celebrated in some Anglican, Lutheran churches and some Liberal Catholic Churches. It does not commemorate a particular event in Jesus‘s life but celebrates the Body of Christ in the Mass. It is held on the Thursday after Trinity Sunday or, in some places, on the following Sunday. Its celebration on a Thursday is meant to associate it with the institution by Jesus of the Eucharist during the Last Supper, commemorated on Maundy Thursday, but because the primary focus of Maundy Thursday is the institution of the Eucharist and not a veneration of the Real Presence of Christ in the consecrated elements of bread and wine, Corpus Christi is observed after the fifty days of Easter are over. Therefore, it is observed on the first free Thursday after Paschaltide. In the current Ordinary form of the Roman rite of the Catholic Church, the feast is officially known as the Solemnity of the Most Holy Body and Blood of Christ.
In many English-speaking countries, Corpus Christi is transferred to the Sunday after Trinity Sunday by both Roman Catholics and Anglicans. At the end of the Mass, it is customary to have a Procession of the Blessed Sacrament (often outdoors), followed by Benediction of the Blessed Sacrament.