The Cathedral of the Most Holy Savior and of Saints John the Baptist and the Evangelist in the Lateran (Italian: Santissimo Salvatore e Santi Giovanni Battista ed Evangelista in Laterano) – also known as the Papal Archbasilica of Saint John [in] Lateran, Saint John Lateran, or the Lateran Basilica – is the cathedral church of the Diocese of Rome in the city of Rome and serves as the seat of the Roman Pontiff.
The large Latin inscription on the façade reads: Clemens XII Pont Max Anno V Christo Salvatori In Hon SS Ioan Bapt et Evang. This abbreviated inscription translates as: "Pope Clement XII, in the fifth year [of his Pontificate, dedicated this building] to Christ the Savior, in honor of Saints John the Baptist and [John] the Evangelist". The inscription indicates, with its full title (see below), that the archbasilica was originally dedicated to Christ the Savior and, centuries later, co-dedicated to Saint John the Baptist and Saint John the Evangelist. As the Cathedral of the Pope as Bishop of Rome, it ranks superior to all other churches of the Roman Catholic Church, including Saint Peter's Basilica.
The archbasilica's Latin name is Archibasilica Sanctissimi Salvatoris ac Sancti Ioannis Baptistae et Ioannis Evangelistae ad Lateranum, which in English is the Archbasilica of the Most Holy Savior and Saints John the Baptist and John the Evangelist at the Lateran, and in Italian Arcibasilica [Papale] del Santissimo Salvatore e Santi Giovanni Battista ed Evangelista in Laterano.