Llanwnda is a rural village and ancient parish in northern Pembrokeshire. It lies some two miles northwest of the port of Fishguard and is inside the boundaries of the Pembrokeshire Coast National Park.
To the north of the village is the rocky outcrop of Garnwnda, which was the site of a French soldiers' camp during the Battle of Fishguard. On the north side of Garnwnda is a prominent cromlech excavated by John Fenton in 1847.
The church of St Gwyndaf is a Grade-II* listed building 
The community came to a degree of national prominence in the summer of 2007 following the purchase of a semi-derelict farmhouse (Trehilyn) by the broadcaster Griff Rhys Jones and the ensuing BBC television documentary, A Pembrokeshire Farmhouse, which recorded its restoration.
- Archaeologia Cambrensis (No XII - Oct 1848 ed.). Cambrian Archaeological Association. 1847. pp. 283. https://books.google.com/books?id=QLk1AAAAMAAJ&pg=PA283#v=onepage&q&f=false. Retrieved 5 June 2014.
- "Church of St Gwyndaf, Llanwnda, Pencaer". British Listed Buildings. http://www.britishlistedbuildings.co.uk/wa-12980-church-of-st-gwyndaf-llanwnda-pencaer. Retrieved 30 December 2013.
- Becky Hotchin (2 January 2018). "Last invasion Llanwnda Bible to go on display". Western Telegraph. http://www.westerntelegraph.co.uk/news/15798416.Last_invasion_Llanwnda_Bible_to_go_on_display/. Retrieved 2 January 2018.