37x6 - WWE Pay-Per-View Shows

The 2021 WrestleMania Backlash was the 16th Backlash professional wrestling pay-per-view (PPV) and livestreaming event produced by WWE. It was held for wrestlers from the promotion's Raw and SmackDown brand divisions. The event took place on May 16, 2021, from the WWE ThunderDome, hosted at the Yuengling Center in Tampa, Florida—it was WWE's first PPV to present the ThunderDome from the Yuengling Center during the COVID-19 pandemic, following a four-month residency at Tropicana Field in St. Petersburg, Florida. It was also the first Bcklash to air on the livestreaming service Peacock. From 1999 to 2009, the concept of the Backlash PPV was based around the backlash from WWE's flagship event, WrestleMania. The 2021 event returned Backlash to this original position as the post-WrestleMania PPV, and it was in turn renamed to "WrestleMania Backlash" as it was based around the backlash from WrestleMania 37.