The twenty-first season of the American competitive reality television series Hell's Kitchen (subtitled as Hell's Kitchen: Battle of the Ages) premiered on Fox on September 29, 2022, and concluded on February 9, 2023. Gordon Ramsay returned as host and head chef, while Christina Wilson returned as the Red Team's sous-chef and Jason Santos returned as the Blue Team's sous-chef. Matthew Childs and Marino Monferrato both returned as maître d'; Matthew temporarily filled in for Marino in the first nine episodes while Marino was visiting family in Italy.
The season was won by former restaurant owner Alex Belew, with executive chef Dafne Mejia finishing second and head chef Alejandro Najar placing third.
On February 1, 2022, it was announced that the series had been renewed for a twenty-first and twenty-second season. Filming for this season began in January 2022, making this the first Hell's Kitchen season filmed following the start of the COVID-19 pandemic. On June 6, 2022, it was announced that the twenty-first season would premiere on September 29, 2022.
Eighteen chefs competed in season 21. For the third time in the show's history (following seasons one and 18), the chefs were not divided by gender at the start of the season. Instead, they were divided by age, with the "20-somethings" on the Red Team and the "40-somethings" on the Blue Team. Starting from the end of the third episode, the teams were divided by gender, with women on the red team and men on the blue team.
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