St. Cronan's Church, Gothic church in Roscrea, Ireland

St. Cronan's Church is a Gothic building in Roscrea with pointed-arch stained glass windows, a single-cell gable-fronted design, and a bell tower topped with diagonal buttresses and pinnacles. The site includes an enclosed graveyard bounded by a rubble stone wall with cast iron gates and railings that visitors can walk through.

The current church was built in 1812 on the site of a 12th-century Romanesque church, which was demolished; only its western gable and later bell-cot survive, and the original church is National Monument 126. Construction was funded by the Board of First Fruits with a £100 gift and a £775 loan. Local architect James Sheane designed the building, and Thomas Newenham Deane restored it in 1879.

The church's most notable historical artefact is a 17th-century pre-Reformation silver chalice decorated with raised angelic figures. The letters S.C. M.P. are inscribed on its base, thought to be the initials of a couple, so the chalice may have been used at a wedding.

The church stands on the site of a 12th-century Romanesque predecessor, of which only the western gable with its later bell-cot survives; this gable is National Monument number 126. The grounds are enclosed by a rubble stone wall, cast iron gate and railings, and include a graveyard and a replica high cross. The four-stage bell tower and porch are at the south-west, the vestry at the south-east.

The architect James Sheane, who designed the church, was buried in its graveyard following his death in 1816. His final resting place at the site creates an enduring connection between the designer and his creation.