Rhos Dirion

{{Short description|Hill (713.4m) in Powys, Wales}}

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

{{Infobox mountain

| name = Rhos Dirion

| photo = Rhos_dirion.JPG

| photo_caption = The north face of Rhos Dirion from Twmpa

| elevation_m = 713

| elevation_ref = |

| prominence_m = 22

| parent_peak = Waun Fach

| listing = sub Hewitt, Nuttall

| language = Welsh

| location = Black Mountains, South Wales

| range =

| coordinates =

| grid_ref_UK = SO210333

| topo = OS Landranger 161

| type =

| age =

| last_eruption =

| first_ascent =

| easiest_route =

}}

Rhos Dirion is a top of Waun Fach in the Black Mountains in south-eastern Wales. It is the highest point on the Rhos Dirion - Chwarel y Fan ridge.

The summit is marked by a trig point and crowns an area of peat bog, heather and long grasses. Its northern face is precipitous.Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. {{ISBN|1-85284-304-7}}.