2021 Rally Estonia

[5] In the WRC-3 category, Oliver Solberg and Aaron Johnston were the reigning rally winners,[6] but they did not defend their titles as they were promoted to higher classes by Hyundai Motorsport.

[12] Reigning World Champions Sébastien Ogier and Julien Ingrassia entered the round with a thirty-four-point lead over Elfyn Evans and Scott Martin.

In the World Rally Championship-2 standings, Andreas Mikkelsen and Ola Fløene held a two-point lead ahead of Mads Østberg and Torstein Eriksen in the drivers' and co-drivers' standings respectively, with Marco Bulacia Wilkinson and Marcelo Der Ohannesian in third.

In the World Rally Championship-3 standings, Yohan Rossel and Alexandre Coria led drivers' and co-drivers' championship respectively.

In the junior championship, Mārtiņš Sesks and Renars Francis led Sami Pajari and Marko Salminen by nine points.

A further eight crews were set to enter the Junior World Rally Championship in Ford Fiesta Rally4s.