2021 24 Hours of Nürburgring

The 2021 Nürburgring 24 Hours (officially known as ADAC Total 24h Race at the Nürburgring Nordschleife for sponsorship reasons) was the 49th running of the Nürburgring 24 Hours and took place over 3–6 June 2021. The Manthey Racing Porsche 911 GT3 won the race with the Rowe Racing BMW M6 in second. Rowe Racing and BMW were the defending winners from the previous year's race.

At the time the race became the shortest-ever in terms of both laps and run-time, until the 2024 event would prove to be even shorter. The winner of the race only completed fifty-nine laps in less than 10 hours of green- and yellow-flag running as a result of torrential rain and heavy fog. The race included a large number of different classes of cars, varying in speed from Group GT3 sport cars to a Dacia Logan. Of the 121 cars that started the race, ninety-nine finished.