| Seiont | |
|---|---|
| Electoral ward | |
&sq=&lang=&file=File:Gwynedd_UK_location_map.svg)  Seiont Location within Gwynedd | |
| Population | 3,038 (2011 census) |
| Community | |
| Principal area | |
| Country | Wales |
| Sovereign state | United Kingdom |
| Post town | CAERNARFON |
| Postcode district | LL55 |
| Dialling code | 01286 |
| UK Parliament | |
| Senedd Cymru – Welsh Parliament | |
| Councillors | 2 (County) 4 (Town Council) |
Seiont is an electoral ward in the town of Caernarfon, Gwynedd, Wales, electing councillors to the town council and Gwynedd Council.