Brynmenyn is a small village located at the confluence of the Garw and Ogmore rivers in south Wales, around 4 miles north of Bridgend, and it also in the Bridgend County Borough council area. The village has its own primary school.
The A4065 road runs through the village; to the west this leads to Tondu, and to the east it heads to Abergarw and Bryncethin. The A4064 road starts in the village and heads north towards Llangeinor. A disused railway runs through the village, and the village formerly had a railway station.
Bryngarw Country Park is situated on the north-western boundary of the village.