Coordinates: 51°58′59″N 4°07′01″W / 51.983°N 4.117°W
Llanfihangel Rhos-y-Corn is a community of Carmarthenshire, Wales. The population of the community taken at the 2011 census was 468.
The community is bordered by the communities of: Llanybydder; Llansawel; Llanfynydd; Llanegwad; Llanllawddog; Llanfihangel-ar-Arth; and Llanllwni, all being in Carmarthenshire.