St Elvan's Church is a Grade II* listed Anglican church in the centre of the town of Aberdare. It was built in 1851–2, largely at the instigation of John Griffith, vicar of Aberdare from 1847 until 1859.
On December 11, 1849, Griffith wrote at length to the Incorporated Church Building Society in relation to the position of the Church of England in the parish of Aberdare. The population of the parish was close to 14,000 people and increasing at a rate of approximately a thousand each year, yet the ancient parish church of St John's could accommodate fewer than two hundred people.
A campaign to build a new church at Aberdare was launched in 1850 when a public meeting was held, and within nine days a £1,000 had been raised by public subscription. By February 1851, subscriptions amounted to £2,500, just £500 short of the £3,000 that was deemed necessary to pay for the new building. Andrew Moseley was chosen as the architect to draw up the plans for the church. By February 1852, however, it was realised that insufficient funds were available and another campaign for public subscriptions took place. Within a few months, the work had been completed and St Elvan's Church was officially opened by services led by Alfred Ollivant, Bishop of Llandaff, on 30 September 1852. Special trains were laid on from Cardiff, Swansea and Neath, among other place, to mark the occasion. The congregation includes strong representation from the gentry families of Glamorgan, as well as schoolgirls from the school run at Dowlais by Lady Charlotte Guest, dressed in Welsh costume. St Elvan's was consecrated on 25 September 1854.
Coordinates: 51°42′48″N 3°26′42″W / 51.7132°N 3.4451°W