Merthyr Cynog

{{Use dmy dates|date=April 2022}}

{{Infobox UK place

| official_name = Merthyr Cynog

| type = Hamlet and community

| country = Wales

| welsh_name =

| static_image_name =

| static_image_caption =

| coordinates = {{coord|52|01|N|3|29|W|display=inline,title|region:GB_type:city_source:GNS-enwiki}}

| unitary_wales = Powys

| module= {{Collapsible list

| framestyle=border:none;text-align:center; padding:0; |title=Community map

|1=240px
Map of the community

}}

}}

Merthyr Cynog is a hamlet and a community in the modern county of Powys, Wales, in the historic county of Brecknockshire. The population of the community at the 2021 Census was 245.{{cite web|url=http://www.neighbourhood.statistics.gov.uk/dissemination/LeadKeyFigures.do?a=7&b=11126500&c=LD3+9RD&d=16&e=62&g=6491314&i=1001x1003x1032x1004&m=0&r=0&s=1447588879872&enc=1|title=Community population 2011|access-date=15 November 2015}}

File:Church of St Cynog, Merthyr Cynog - geograph.org.uk - 713229.jpg

The Welsh name signifies the 'shrine of Cynog'. The grade II* listed church, a place of pilgrimage, is dedicated to Saint Cynog, a son of Brychan Brycheiniog, and was founded in the 5th century. It is situated on the land between the valleys of the Ysgir Fawr and the Ysgir Fach which penetrate northwestwards into the uplands of Mynydd Epynt from the River Usk some miles to the south. The community includes the hamlet of Upper Chapel which lies a couple of miles to the northeast. To the north and west of Merthyr Cynog is the Army's extensive Sennybridge Training Area or 'SENTA'.Ordnance Survey Explorer map sheet no 188 Builth Wells/Llanfair-ym-MualltHywel Wyn Owen & Richard Morgan 2007, Dictionary of the Place-names of Wales, Gomer Press, Ceredigion

In 2013 Merthyr Cynog Community launched a new website.[http://www.merthyrcynog.org www.merthyrcynog.org merthyrcynog.org], Retrieved 5 April 2016

For elections to Powys County Council, Merthyr Cynog is part of the Yscir electoral ward.