Look up cwm in Wiktionary, the free dictionary.
Cwm or cŵm may refer to:
- Cwm (landform), a rounded, glaciated valley, also known as a corrie or cirque
- Cwm, a steep, narrow valley, or a small valley or large hollow on the side of a hill, also known as a combe
- Cwm (software), a general-purpose data processor for the semantic web
- Cwm railway station, a station in Cwm, Blaenau Gwent, Wales, 1852–1963
- Cwm Rhondda, a famous Welsh hymn tune