| WWE Night of Champions | |
|---|---|
 WWE Night of Champions logo used as of 2023 | |
| Promotion | WWE |
| Brands | Raw (2007–2010, 2023) SmackDown (2007–2010, 2023) ECW (2007–2009) |
| Other name | Vengeance: Night of Champions (2007) |
| First event | Vengeance: Night of Champions (2007) |
| Last event | Night of Champions (2023) |
| Event gimmick | Championship matches |
WWE Night of Champions was a professional wrestling pay-per-view (PPV) and livestreaming event produced by WWE, a Connecticut-based professional wrestling promotion. The inaugural event took place in June 2007 and was a crossover with Vengeance titled Vengeance: Night of Champions. In 2008, Vengeance was dropped in favor of Night of Champions and it took over the June PPV slot. The event then moved to July in 2009 before becoming the annual September PPV beginning in 2010. The original concept of Night of Champions was that every championship promoted on WWE's main roster was contested. In 2016, Night of Champions was replaced by the similarly themed Clash of Champions which was discontinued after its final use in 2020. After eight years, Night of Champions was revived to be held in May 2023 as WWE's ninth event in Saudi Arabia. Although the 2023 event was based around championship matches, not all of WWE's main roster championships were contested.
To coincide with the original WWE brand extension (2002–2011), the events from 2007 to 2010 featured wrestlers from the Raw and SmackDown brands. The events from 2007 to 2009 also featured the ECW brand before that brand was dissolved in early 2010. During the first brand extension, these three brands were considered WWE's main roster. The brand extension ended in August 2011, but was reinstated in July 2016 with Raw and SmackDown again representing the main roster.
Under the event's original concept (2007–2015), 10 different WWE championships were contested at Night of Champions. Only four of these 10 championships were contested at every event during this time. These were the WWE Championship (called the WWE World Heavyweight Championship at the 2014 and 2015 events), the WWE Intercontinental Championship, the WWE United States Championship, and the WWE Tag Team Championship, the latter of which was renamed to Raw Tag Team Championship in 2016 to coincide with the second brand extension that began that year. Although the 2023 event did not retain this original concept, four newer championships were contested, bringing the total number of different championships contested at Night of Champions to 14, and in turn making the Intercontinental and Raw Tag Team Championship the only two titles defended at every event thus far—the reigning WWE Champion competed at the event but instead of defending the title, he challenged for the tag team championship.