| Country: | Wales |
| Coordinates: | 52.86°N -4.616°W |
| Official Name: | Sarn Meyllteyrn |
| Static Image Name: | Gwesty Penrhyn Arms Sarn - geograph.org.uk - 1553735.jpg |
| Static Image Caption: | Penrhyn Arms |
| Unitary Wales: | Gwynedd |
| Lieutenancy Wales: | Gwynedd |
| Constituency Welsh Assembly: | Dwyfor Meirionnydd |
| Constituency Westminster: | Dwyfor Meirionnydd |
| Community Wales: | Botwnnog |
| Postcode District: | LL53 |
| Postcode Area: | LL |
| Post Town: | PWLLHELI |
| Dial Code: | 01758 |
| Os Grid Reference: | SH239324 |
Sarn Meyllteyrn is a village and former civil parish (known at the time as Mellteyrn) in the Welsh county of Gwynedd. It is in the west of the Llŷn Peninsula (Welsh: Penrhyn Llŷn), 8.4 miles (13.5 km) west of Pwllheli and 24.3 miles (39.2 km) south-west of Caernarfon. The village is often referred to simply as Sarn. The parish was abolished in 1934 and divided between the communities of Botwnnog and Tudweiliog.[1]
For elections to Gwynedd Council, the village forms part of the electoral division of Botwnnog, Dwyfor, electing one councillor. Gwenno Glyn of Llais Gwynedd was elected in 2012.[2]
The river Soch runs through the village on its way to Abersoch. The village lies in a small valley with Mynydd Rhiw to the South, Mynydd Cefnamlwch to the North and Carn Fadryn to the North-East.
Primary education is provided by Ysgol Pont y Gôf, in the nearby village of Botwnnog. The school is in the Ysgol Botwnnog catchment area and this is where the majority of pupils go on to complete secondary education.[3]
Sarn Meyllteyrn lies on the B4413 between Llanbedrog and Aberdaron. Buses from Pwllheli to Aberdaron and Uwchmynydd serve the village and are operated by Nefyn Coaches and Arriva Buses Wales.[4] [5] The nearest railway station is at Pwllheli.