Dolgarrog

right|thumb|200px|The shops at Dolgarrog right|thumb|200px|Dolgarrog Halt, on the Conwy Valley line, located across the river right|thumb|200px|Dolgarrog power station, located next to the Aluminium Works right|200px|thumb|The incline up to the Eigiau Tramway, adjacent to the pipeline right|200px|thumb|An engine being taken up the Dolgarrog incline to the Eigiau Tramway. Some of this timberwork still exists today. right|200px|thumb|A slate plaque marking the beginning of the memorial walk right|200px|thumb|The breach in Llyn Eigiau dam, showing the gully cut by flood water. (A second, different breach was later deliberately made in the main wall to prevent it happening again.)

Dolgarrog is a village and community in Conwy County Borough, in Wales, situated between Llanrwst and Conwy, very close to the Conwy River. The village is well known for its industrial history since the 18th century and the 1925 Eigiau dam disaster. The population was 414 at the 2001 Census, increasing to 446 at the 2011 Census. The community extends up to, and includes part of, Llyn Cowlyd in the Carneddau.