Roman Catholic Diocese of Larissa

The Latin or Roman Catholic Archbishopric of Larissa is a titular see of the Catholic Church. It was established briefly as a residential episcopal see at Larissa, Thessaly, during the first decades of the Frankokratia period in place of the Greek Orthodox Metropolis of Larissa. Following the recovery of Larissa by the Greeks, the see became titular. The see has been vacant since the death of its last incumbent, Giuseppe Mojoli, in 1980.

Christianity penetrated early to Larissa, though its first bishop is recorded only in 325 at the Council of Nicaea. Following the Fourth Crusade and Thessaly's incorporation into the Kingdom of Thessalonica, a Roman Catholic archbishop was installed in the place of the previous Greek Orthodox occupant.

The city was soon recovered by the Greek Despotate of Epirus, however, possibly as early as 1212 and the Greek Orthodox metropolitan restored.Pope Honorius III later conferred the see of Thermopylae to the exiled Latin archbishop.

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