Other current and historical names
Location and coordinates are for the approximate centre of Llangwyllog within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Llangwyllog, par. and ry. sta., Anglesey, on river Cefni, 3 m. NW. of Llangefni by rail, 2301 ac., pop. 190.