:Llanfihangel-y-Pennant

{{About|the village and community in Meirionnydd|the village in Eifionydd|Llanfihangel-y-Pennant, Dolbenmaen||Llanfihangel (disambiguation)}}

{{Use dmy dates|date=March 2025}}

{{Use British English|date=March 2015}}

{{Infobox UK place

| country = Wales

| static_image_name = Llanfihangel-y-Pennant Church.jpg

| static_image_caption = St Michael's Church

| welsh_name =

| constituency_welsh_assembly = Dwyfor Meirionnydd

| constituency_westminster = Dwyfor Meirionnydd

| coordinates = {{coord|52.661|-3.965|display=inline,title}}

| official_name = Llanfihangel-y-Pennant

| area_total_km2 = 77.5

| population = 339

| population_ref = (2011)

| unitary_wales = Gwynedd

| community_wales = Llanfihangel-y-Pennant

| lieutenancy_wales = Gwynedd

| post_town = TYWYN

| postcode_district = LL36

| postcode_area = LL

| dial_code = 01654

| os_grid_reference = SH671088

| module= 240px
Map of the community

}}

Llanfihangel-y-Pennant is a hamlet and wider, very sparsely populated community (which includes Abergynolwyn and Tal-y-llyn) in the Meirionnydd area of Gwynedd in Wales. It is located in the foothills of Cadair Idris, and has a population of 402,[http://www.neighbourhood.statistics.gov.uk/dissemination/viewFullDataset.do?instanceSelection=03070&productId=779&$ph=60_61&datasetInstanceId=3070&startColumn=1&numberOfColumns=8&containerAreaId=790560 Office for National Statistics : Census 2001 : Parish Headcounts : Gwynedd] {{webarchive|url=https://web.archive.org/web/20100922091920/http://www.neighbourhood.statistics.gov.uk/dissemination/viewFullDataset.do?instanceSelection=03070&productId=779&$ph=60_61&datasetInstanceId=3070&startColumn=1&numberOfColumns=8&containerAreaId=790560 |date=22 September 2010 }} reducing to 339 at the 2011 Census.{{cite web|url=http://www.neighbourhood.statistics.gov.uk/dissemination/LeadKeyFigures.do?a=7&b=11125888&c=LL36+9UT&d=16&e=62&g=6488964&i=1001x1003x1032x1004&o=362&m=0&r=0&s=1431619917842&enc=1|title=Community population 2011|access-date=14 May 2015}}

Nearby is the ruined castle of Castell y Bere, a stronghold of the Welsh princes of Gwynedd in the 13th century.