Mynydd Troed is a hill in the Black Mountains of the Brecon Beacons National Park in Powys, south Wales.

Its name literally translates to "Foot Mountain," based how it appears when viewed from the Allt Mawr ridge.

Its summit at the northern end of a northwest to southeast aligned ridge reaches 609 metres (1,998 ft) above sea level and is crowned by a trig point.

A few old landslides scar its slopes, a couple of which are seen to advantage from Castell Dinas and the ridge of Y Grib to the east.

The most popular routes of ascent are from Pengenffordd on the A479 to the northeast and from the col over which the minor road up Cwm Sorgwm goes towards Llangors.