M, N, O
| Waterfall name | River or stream | OS Grid ref. | general location |
|---|---|---|---|
| Machno Falls | Afon Machno | SH808532 | near Penmachno |
| Melincourt Falls | Melincourt Brook | SN825016 | near Resolven |
| Mynach Falls or Rhaeadr Mynach | Afon Mynach | SN742772 | near Devil's Bridge |
Read more about this topic: Waterfalls Of Wales, Alphabetical Table of Named Waterfalls