The Finals, formerly known as World Group, was the highest level of Davis Cup competition in 2021.

It was held on indoor hard courts at three venues in Innsbruck, Austria, Madrid, Spain and Turin, Italy.

[1] On 18 January 2021, ITF announced that the Finals would be expanded over 11 days, from 25 November to 5 December 2021.

The Russian Tennis Federation won the title, defeating Croatia in the final.

Andrey Rublev was named the Most Valuable Player of the tournament after going 6–1 in both singles and doubles.