Mynydd Mawr (Welsh for big mountain) is a mountain in North Wales.
Mynydd Mawr may also refer to:
- Llanarmon Mynydd Mawr, an isolated rural parish in Powys, Wales
- Llanelli and Mynydd Mawr Railway, a heritage railway aiming to re-instate the Llanelly and Mynydd Mawr Railway that closed in 1989
- Llanelly and Mynydd Mawr Railway
- Ras Mynydd Mawr, an annual running race from Y Fron up the hill Mynydd Mawr
- Mynydd Mawr, a 160 metre hill near Aberdaron
This disambiguation page lists articles associated with the title Mynydd Mawr.
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