Aberystwyth (Mouth of the Ystwyth, /ˌæbəˈrɪstwɪθ/, Welsh: [abɛrˈəstʊɨθ]) is a historic market town, administrative centre and holiday resort within Ceredigion, West Wales. Often colloquially known as Aber, it is located near the confluence of the rivers Ystwyth and Rheidol.