CKLW is a 50,000 watt AM radio station broadcasting on 800 kHz and located in Windsor, Ontario, Canada, and serving Windsor and Detroit. It is best known for having been one of the leading Top 40 stations in North America in the 1960s and 1970s.

In the late 1960s and early 1970s, CKLW was one of the top radio stations in the world, using a very tight Top 40 format known as Boss Radio, devised by legendary radio programmer Bill Drake. However, CKLW never actually used the handle "boss" on the air, just the style. Rather than a "Boss 30", CKLW's weekly music survey was known as a "Big 30". And instead of calling itself "Boss Radio", CKLW called itself "The Big 8". During this period it was the top-rated radio station not only in Windsor, but across the river in Detroit, Michigan, and even in cities as far away as Toledo and Cleveland in Ohio.

It is the flagship station (along with WOMC) of The University of Michigan Sports Network