WWE World at WrestleMania, formerly known as WrestleMania Axxess, is a professional wrestling fan convention held by WWE during the week of WrestleMania. The event typically runs for four to five days—from Thursday to Sunday or Monday—and features WWE talent and alumni autograph signings, interviews, fan activities, memorabilia displays, meet-and-greets, and matches. WrestleMania Axxess was briefly discontinued from 2020 due to the COVID-19 pandemic, but was relaunched as WWE World at WrestleMania beginning with WrestleMania XL in 2024.

WrestleMania is a professional wrestling event held annually between mid-March and mid-April by the American company WWE, the world's largest professional wrestling promotion. Since premiering in 1985, 40 events have been held, with its most recent 40th edition occurring at Lincoln Financial Field in Philadelphia, Pennsylvania on April 6 and 7, 2024. WrestleMania was WWE's first-ever pay-per-view (PPV) produced and is the most successful and longest-running professional wrestling event in history. The event has been broadcast through traditional PPV since 1985 and has been available via livestreaming since WrestleMania XXX in 2014, which was WWE's first major event available through this medium. WrestleMania was conceptualized by former WWE executive chairman Vince McMahon and named by ring announcer and WWE Hall of Famer Howard Finkel. It is the company's flagship event and along with Royal Rumble, SummerSlam, Survivor Series, and Money in the Bank, it is referred to as one of the "Big Five", WWE's five biggest annual events of the year.