CW4 may refer to:
U.S. television stations affiliated with The CW network Current Owned-and-operated KGBT-TV in Harlingrn-McAllen-Brownsville, Texas KRON-TV in San Francisco, California
Affiliates KCWO-TV in Big Spring–Odessa–Midland, Texas KTIV-DT2 in Sioux City, Iowa KTKB-LD in Tamuning, Guam (cable channel; broadcasts on channel 26) WOAI-TV-DT2 in San Antonio, Texas
Former KOMO-TV-DT2 in Seattle, Washington (2023–2024) KXLF-TV-DT2 in Butte, Montana (2006–2023) WCBI-TV-DT3 in Columbus, Mississippi (2006–2024) WMOW in Wausau, Wisconsin (2010–2021) WTTV in Bloomington–Indianapolis, Indiana (2006–2014)
Other uses CW4, a postcode district in the CW postcode area Chief Warrant Officer 4, a rank of Warrant Officer (United States) in the United States military HLA-Cw4 is a serotype within the HLA-C serotype group