2021 Esiliiga B

The 2021 Esiliiga B was the ninth season of the Esiliiga B, the third tier of Estonian football. The season began on 6 March 2021 and concluded on 21 November 2021. Viimsi won their first Esiliiga B title.

Player of the Season
Karl Anton Sõerde was named Esiliiga B Player of the Year.