Barmouth (formal Welsh: Abermaw; colloquially Y Bermo) is a seaside town and community in the county of Gwynedd, north-west Wales; it lies on the estuary of the Afon Mawddach and Cardigan Bay.

"Finally, when we left the southern bank and crawled to the opposite side over the bridge, almost a mile long and supported on mighty posts of oak, on our right the river bed, inundated by the sea at high tide and looking like a mountain lake, on our left Barmouth bay stretching to the bright horizon, I felt so joyful that I often scarcely knew where to look first... To the south-west the terrain lay open in a wide semi-circle, so that from the forecourt of the house you had a view of the full length of the estuary from Dolgellau to Barmouth, while these places themselves were excluded from the panorama, which was almost devoid of human habitations, by a rocky outcrop on one side and a laurel-grown hill on the other.

Only on the far side of the river could the little village of Arthog be seen - in certain atmospheric conditions, said Austerlitz, you might have thought it an eternity away - infinitesimally small, with the shadow of Cadair Idris rising behind it to a height of almost three thousand feet above the shimmering sea."

"[5] Dinas Oleu (Citadel of Light), which is located east of the town on the adjoining hillside,[1] was the first tract of land to be donated to the National Trust.

Local bus services are provided by Lloyds Coaches and link the town with nearby destinations such as Harlech, Tan-y-Bwlch, Porthmadog and Dolgellau.

Cross-country bus services are available to Wrexham via Bala, Corwen and Llangollen, as part of the Welsh Government funded TrawsCymru network.