Llangian Welsh: Llangïan
St Cian's Church
Llangian Location within Gwynedd
OS grid reference	SH295288
Community	Llanengan
Principal area	Gwynedd
Preserved county	Gwynedd
Country	Wales
Sovereign state	United Kingdom
Post town	PWLLHELI
Postcode district	LL53
Dialling code	01758
Police	North Wales
Fire	North Wales
Ambulance	Welsh
UK Parliament	Dwyfor Meirionnydd
Senedd Cymru – Welsh Parliament	Dwyfor Meirionnydd
List of places UK Wales Gwynedd 52°49′48″N 4°31′52″W / 52.830°N 4.531°W / 52.830; -4.531

Llangian is a small village and former civil parish on the Llŷn Peninsula in the Welsh county of Gwynedd. It is located 1 mile (1.6 km) north west of Abersoch, in the community of Llanengan. The parish was abolished in 1934 and divided between Llanengan and Botwnnog.^[1]

The village's church of Saint Cian is connected to the Edwards family of Nanhoron.^[2]