The Whitland and Cardigan Railway was a 27.5 miles (44.3 km) long branch line in West Wales. It was built in two stages, at first as the Whitland and Taf Vale Railway from the South Wales Main Line at Whitland to the quarries at Glogue. It opened in 1873, at first only for goods and minerals and later for passengers. The line to Cardigan opened in 1886; reflected in the company name change.

Cardigan is a town and community in the county of Ceredigion, Wales. Positioned on the tidal reach of the River Teifi at the point where Ceredigion meets Pembrokeshire, Cardigan was the county town of the historic county of Cardiganshire. Cardigan is the second-largest town in Ceredigion. The largest town, Aberystwyth, is one of the two administrative centres; the other is Aberaeron.