The 2021 Lithuanian Football Cup was a single elimination association football tournament which began on 22 May 2021 and ended on 23 October 2021. The winner of the competition earned a spot in the second qualifying round of the 2022–23 UEFA Europa Conference League.
First round
Fourteen first round matches were played on 22–25 May 2021. Two random teams received a "bye" to the second round. == Second round ==
Second round
Eight second round matches were played on 15–23 June 2021. == Quarter–finals ==
Quarter–finals
The quarter–final matches were played from 18 August to 22 September 2021. == Semi–finals ==
Semi–finals
The semi–final matches were played on 28–29 September 2021. == Final ==