The 2024 A Lyga, for sponsorship reasons also called TOPsport A Lyga, was the 35th season of the A Lyga, the top-tier football league of Lithuania. The season began on 1 March 2024 and ended on 9 November 2024.

The winners (Žalgiris) qualified for the 2025–26 Champions League first qualifying round. The runners-up (Hegelmann), third-placed team (Kauno Žalgiris), and 2024 Lithuanian Football Cup winners (Banga) qualified for the 2025–26 Conference League first qualifying round. The ninth-placed team (Sūduva) qualified for the A Lyga play-off, winning and retaining their place in the league. The bottom-placed team (TransINVEST) were relegated to the 2025 LFF I Lyga.

The league consisted of ten teams; the top nine teams from the previous season, and one team promoted from the LFF I Lyga. Panevėžys entered the season as defending champions.

TransINVEST were promoted as champions of the 2023 LFF I Lyga, replacing the 2023 A Lyga bottom-placed team (Riteriai).

The ninth-placed club (Sūduva) faced the second-placed club from the 2024 LFF I Lyga (Be1 NFA) in a two-legged play-off for the final place in the 2025 A Lyga.