A Lyga
Although the 2019 I Lyga winners FC Džiugas Telšiai won promotion to A lyga, the club failed to meet 2020 A Lyga licensing criteria, and had their promotion forfeited. Only FK Banga Gargždai had advanced to A Lyga after the 2019 season, having won the promotion playoff against the A lyga 7-th placed FK Palanga before its expulsion from the A Lygas.