The LEC 2023 Summer Season is the third split of the first year of the newly merged EMEA's rebranded professional League of Legends league. It is the fifth year of the LEC and the first season following the changed format. In Stage 1, ten teams compete in a single round robin group stage, with the top eight advancing to Stage 2, a double elimination group stage. From here, the top four advance to Stage 3, the double elimination playoffs.