The Quad City Thunder was a Continental Basketball Association (CBA) franchise that was based in the Quad Cities of Illinois and Iowa. They played in the CBA from the 1987–88 season until the CBA folded in 2001. The Thunder were successful on the court, capturing CBA championships in the 1993–94 and 1997–98 seasons, and runner-up in the 1990–91 season. The Thunder played in Moline, Illinois, first at Wharton Field House before moving to the new MARK of the Quad Cities in 1993.

The Continental Basketball Association (CBA), originally known as the Eastern Pennsylvania Basketball League, and later as the Eastern Professional Basketball League and the Eastern Basketball Association, was a men's professional basketball minor league in the United States from 1946 to 2009.