| Llangristiolus | |
|---|---|
|   Sheep at Tan-yr-Allt Farm, Llangristiolus | |
| Location within Anglesey  | |
| Population | 1,357 (2011) [1] | 
| OS grid reference | SH4373 | 
| Principal area | |
| Preserved county | |
| Country | Wales | 
| Sovereign state | United Kingdom | 
| Post town | BODORGAN | 
| Postcode district | LL62 | 
| Dialling code | 01248 | 
| Police | North Wales | 
| Fire | North Wales | 
| Ambulance | Welsh | 
| UK Parliament | |
| Senedd Cymru – Welsh Parliament | |
Llangristiolus is a village and community in the middle of Anglesey, Wales, southwest of Llangefni, and is named after Saint Cristiolus. The River Cefni flows through the village. The village is within a mile of the A5 and A55 roads. The village of Rhostrehwfa is in the community.
The church of St Cristiolus dates from the 12th century.