Cwm may refer to:
Cwm Rhondda, taken from the Welsh name for the Rhondda Valley, is a popular hymn tune written by John Hughes.
Cwmbran (/kʊmˈbrɑːn, ˌkuːmˈbrɑːn/; Welsh: Cwmbrân [kʊmˈbrɑːn], also in use as an alternative spelling in English) is a new town in Wales.
Cwm Prysor Halt (named simply Cwm Prysor until 1953) was a railway station which served the remote rural area of Cwm Prysor, east of Trawsfynydd, Gwynedd, Wales.
Cwmavon (Welsh spelling: Cwmafon; translation: "river valley") is a hamlet about 2 miles south of Blaenavon and 4 miles north of Pontypool.
Cwm (from Welsh Y Cwm, meaning '(the) valley') is a former coal mining village and an electoral ward three miles south of Ebbw Vale in the county borough of Blaenau Gwent, Wales, within the historic boundaries of Monmouthshire, United Kingdom.
CWM FX was a foreign exchange trading firm located at the Heron Tower at 110 Bishopsgate, otherwise known as Salesforce Tower.
cwm (Calm Window Manager) is a stacking window manager for the X Window System. While it is primarily developed as a part of OpenBSD's base system, portable versions are available on other Unix-like operating systems.
Cwmbrân Town is a football team based in Cwmbrân, Wales and play in the Gwent County League Division 1, the fifth tier of Welsh Football.
Cwm Prysor Viaduct, which is occasionally referred to as Blaen-y-Cwm Viaduct, is a former railway structure which crosses the Afon Prysor in thinly populated uplands east of Trawsfynydd, Gwynedd, Wales.