Caerphilly Mountain () lies between Cardiff and Caerphilly at the southern edge of the South Wales Coalfield. Its summit is above sea-level.

Since 1957 there had been a small wooden snack bar near to the summit. In September 2011 this was replaced by an eco-friendly permanent building, with under floor heating, solar panels and rainwater-flushed toilets, at a cost of £300,000.Caerphilly Observer Caerphilly Mountain Snack Bar gets £300,000 revamp (online article viewed 6 Sept 2011) The mountain includes Caerphilly Common ().

The climb features regularly on the Tour of Britain cycle race, with double climbs in the 2012 and 2013 races.Tour of Britain 2012, stage six: Leopold Koenig triumphs in Caerphilly as Jonathan Tiernan-Locke takes lead - TelegraphBBC News - In pictures: Tour of Britain tackles Caerphilly Mountain

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