Llantrisant Fawr is a community in Monmouthshire, Wales.

Villages within the community include Llantrisant and Llanllowell.

The community council has three wards: Llantrisant, Llangwm and Llansoy, after Llangwm community was absorbed with boundary changes in May 2022.

The population in the 2011 census was 475.

[1] Llantrisant Fawr Community Council This Wales-related article is a stub.