The St Dogmaels television relay station is a broadcasting and telecommunications facility located just above the village of St Dogmaels in Pembrokeshire, Wales, about 2 km to the south west of the town of Cardigan, in neighbouring Ceredigion(grid reference SN165452).

It was originally built by the IBA as a 625-line analogue UHF television relay, entering service in early 1978.

Since then it has been converted to transmit the main three multiplexes of the DVB-T digital television system.

The television broadcasts primarily cover St Dogmaels itself plus the town of Cardigan and the upper estuary of the Teifi river.

With the completion of the digital switchover at Preseli on 16 September, all analogue television from this site ceased forever.