Conwal Parish Church is a Church of Ireland church located in Letterkenny, County Donegal, Ireland. It is located opposite the Cathedral of St. Eunan and St. Columba at the top of Church Street. The church dates back to the 17th century.
The building is believed to have been constructed when a church located at Conwal, not far from Churchill fell into ruins. The church is rubble built with an ashlar spire. The interior retains its early 19th century cast-iron circular roof, trusses and a short gallery and twisted brass brackets.
The Civil Survey of 1652-56 gives an interesting image into what the town was like in the 17th century:
"There is a town called Letterkenny which hath a market every Friday and two fairs in the year with a fair Church and a bridge at the east end over the River Swilly".
It is stated that the church is in good repair and that in 1733 it was slated and one side seated. All of these changes took place while the Rev. William Spann, a rector who did a lot for the parish, was in Letterkenny. The chalice and paten dated 1744 are still in use to this day. These were given to the church by Dr. Spann. Dr. Spann died in 1752 and is buried under the Church.
The remains of Redmond O'Hanlon are also located on the church grounds. A large flat stone opposite the vestry door marks his grave. An obelisk stands at the East side of the church to commemorate Rev. Dr. John Kinnear, a Presbyterian minister in Letterkenny, who was M.P. for County Donegal and carried the banner for Tenants Rights in the 1880s. Joseph Stopford, grandfather of Stopford Augustus Brooke, is a former rector of the church.