Casimir Albrecht Willem Jeekel (1922–2010) was a Dutch myriapodologist and entomologist known for his major contributions to the taxonomy of millipedes.
Charles W. "C. W." Jensen is a retired captain of the Portland Police Bureau in the U.S. state of Oregon.
Field Marshal Sir Claud William Jacob, GCB, GCSI, KCMG (21 November 1863 – 2 June 1948) was a British Indian Army officer.
Charles W. Juels (1944 – January 21, 2009) was an American amateur astronomer and psychiatrist by profession, who became a prolific discoverer of minor planets after his retirement.
In topology, a CW complex is a type of topological space introduced by J. H. C. Whitehead to meet the needs of homotopy theory.
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.