CW7
CW7 or CW 7 may refer to:

 CW7, a CW postcode area for the post town of Winsford in Cheshire, UK
 Czerwiński CW 7, a 1930s Polish aerobatic glider 
 HLA-Cw7, a human leukocyte antigen serotype
 WTVW, a television station in Evansville, Indiana, affiliated with The CW network
 WWMT-DT2, a digital subchannel of WWMT in Kalamazoo, Michigan
 CW7, a designation for convoy routes in the English Channel during the Kanalkampf of WWII