List of WCW World Tag Team Championship reigns by length

The WCW World Tag Team Championship was a professional wrestling world tag team championship contested for in World Championship Wrestling (WCW). Originally, WCW was a member of the National Wrestling Alliance (NWA), which had numerous member promotions. The NWA operated many tag team championships before one prime tag team title was established in 1982. One of those titles was the NWA World Tag Team Championship, which was operated by the NWA member Mid-Atlantic Championship Wrestling (MACW), the predecessor of WCW. The championship was created by MACW in 1975.

In January 1991, WCW (the former MACW) renamed the title WCW World Tag Team Championship. On July 12, 1992, the WCW World Tag Team Championship was unified with the NWA World Tag Team Championship, which was created earlier that year by the NWA as its prime tag team championship. In September 1993, WCW withdrew from the NWA and ceased using the NWA World Tag Team Championship; the title was reactivated by the NWA in 1995.

In March 2001, all WCW assets were purchased by the then World Wrestling Federation (WWF, now WWE) after AOL/Time Warner discontinued their involvement in wrestling programming. After the purchase, the WWF continued the use of the now renamed WCW Tag Team Championship as a part of a storyline called The Invasion, which involved a rivalry between former WCW wrestlers and original WWF wrestlers before the purchase of WCW.

Title reigns were determined either by professional wrestling matches with different tag teams, a duo of wrestlers, involved in pre-existing scripted feuds, plots and storylines or were awarded the title due to scripted circumstances. Wrestlers were portrayed as either villains or fan favorites as they followed a series of tension-building events, which culminated in a wrestling match or series of matches for the championship. The inaugural champions, under the NWA, were The Minnesota Wrecking Crew (Gene and Ole Anderson), who were announced to have won the championship after winning a tournament in January 1975.

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