WWE ECW in the context of "SmackDown (WWE brand)"

Raw is a brand of the American professional wrestling promotion WWE that was established on March 25, 2002. Brands are divisions of WWE's roster where wrestlers are assigned to perform on a weekly basis when a brand extension is in effect. Wrestlers assigned to Raw primarily appear on the brand's weekly television program, Monday Night Raw, which began in 1993, also referred to simply as Raw. It is one of WWE's two main brands, along with SmackDown, which was made in 2002 after absorbing the WCW. They are collectively referred to as WWE's main roster. The brand extension was discontinued between August 2011 and July 2016.

In addition to Raw's main television program, less-utilized wrestlers also appear on the brand's supplementary show, Main Event. Raw's wrestlers also perform on the branded and co-branded pay-per-view and livestreaming events and the quarterly Saturday Night's Main Event special. During the first brand split (2002–2011), Raw wrestlers also competed on the former supplementary show, Heat, and on ECW under a talent exchange program with the former ECW brand, while during the second brand split (2016–present), the brand's wrestlers have appeared in the interbrand Worlds Collide, Mixed Match Challenge, and annual Tribute to the Troops events. Additionally during the second split, Raw's cruiserweight wrestlers competed on 205 Live when WWE's revived cruiserweight division was exclusive to Raw from 2016 to 2018 before 205 Live became its own brand.

The ECW World Heavyweight Championship was a professional wrestling world heavyweight championship originally used in Extreme Championship Wrestling (ECW) and later, World Wrestling Entertainment (WWE). It was the original world title of the ECW promotion, spun off from the NWA World Heavyweight Championship. It was established under ECW in 1994 but was originally introduced in 1992 by the promotion's precursor, Eastern Championship Wrestling, a territory of the National Wrestling Alliance (NWA). The inaugural champion was Jimmy Snuka in 1992; however, WWE considers the inaugural world heavyweight champion to be Shane Douglas, with his reign beginning on August 27, 1994, when Eastern Championship Wrestling split from the NWA to become Extreme Championship Wrestling.

The title was deactivated in 2001 when ECW ceased all of its operations. The assets of ECW were then purchased by WWE in 2003. In 2006, WWE reactivated the championship as the world title of their newly established ECW brand. It was the third concurrently active world championship in the promotion, complementing the WWE Championship and World Heavyweight Championship of the other two brands, Raw and SmackDown. The ECW Championship then briefly appeared as the sole world title of the Raw brand in 2008 as a result of that year's draft. When WWE disbanded the ECW brand in 2010, the championship was subsequently retired following the final episode of ECW with Ezekiel Jackson as the final titleholder, who consequently had the shortest reign at 2 minutes, 25 seconds as he won it during the episode.

ECW (often pejoratively nicknamed WWECW to distinguish from its original 90s predecessor) was a brand of the American professional wrestling promotion World Wrestling Entertainment (WWE) that was established in May 2006 and discontinued in February 2010. Wrestlers that were assigned to ECW primarily appeared on the brand's weekly television program, ECW. The brand was established as a relaunch of the former Extreme Championship Wrestling (ECW) promotion, the assets of which WWE acquired in 2003.

The brand operated during the second half of WWE's first brand extension period (2002–2011), and was one of WWE's three main brands, along with Raw and SmackDown. In addition to the brand's television program, ECW wrestlers competed on the branded and co-branded pay-per-view events. From 2007 to 2009, ECW wrestlers also occasionally appeared on the Raw and SmackDown television programs due to talent exchange agreements between the brands. The brand was dissolved in February 2010, and its show was replaced by the reality series NXT, which was rebranded as WWE's developmental territory, NXT, in 2012.