Llangefni
Llangefni Clock Tower
Llangefni
Location within Anglesey
Population	5,116 (2011 census)
OS grid reference	SH4675
Principal area	Anglesey
Ceremonial county	Gwynedd
Country	Wales
Sovereign state	United Kingdom
Post town	LLANGEFNI
Postcode district	LL77
Dialling code	01248
Police	North Wales
Fire	North Wales
Ambulance	Welsh
UK Parliament	Ynys Môn
List of places UK Wales Anglesey 53°15′22″N 4°18′50″W / 53.256°N 4.314°W / 53.256; -4.314

Llangefni is a town in Anglesey, Wales. According to the 2011 census, it has a population of 5,116 people.

It is Anglesey's county town, but the largest town is Holyhead.

It is located near the centre of the Isle of Anglesey and is on the banks of the Afon Cefni, the river that the town takes its name from.

Llangefni is a commercial and farming town and once had the largest cattle market in Anglesey.

According to the 2011 census, Llangefni has the 6th highest percentage of Welsh language speakers in the whole of Wales.

• 
  St Cyngar's Church
• 
  Ffordd Glandwr Road
• 
  Llangefni High Street