At the southern (lower) end of the village, marking its boundary with
Pantygog, the
River Garw is joined from the east by the Nant Fforch Wen ("White Fork Stream"). This area is still known as "Braich y Cymmer", reflecting the historical spelling with "mm". At the northern (upper) end, towards its boundary with
Blaengarw, the River Garw is joined by the Nant Gelli Wern ("Marsh Grove Stream") at Ffaldau, the village square. Among those born in the village are the
artist and
journalist Molly Parkin (Molly Thomas),
snooker player
Ryan Day, Welsh
rugby captain
John Lloyd and Welsh rugby league player
Ike Owens. Dr Dan Davies (physician to the king and chief advisor for the establishment of the NHS), Phylip Henry Rees (
preacher and
evangelist of the Gospel) and
Wendy Phillips, ‘the cleaning lady who went to Hollywood’ who was the inspiration for all
Sara Sugarman's films. It was also home to the author, neuroscientist, and stand-up comedian Dean Burnett. Numerous locations in Pontycymer feature as the fictional village of Ogw in the film
Very Annie Mary, as well as in scenes from six other short films by Sugarman. The oldest street in the village is Railway Terrace, originally named "Milk Row". ==Governance==