The 2023 LEC Summer is the third and last 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.

Tournament Format

Regular season will be played in a single round-robin format, All matches will be played in a best-of-one setting.

Summer groups will be played by the top eight teams from the season that will be divided into two groups where they will play in a GSL Format, All matches will be played in a best-of-three setting.

Playoffs will be played by the top four teams from the summer group and they will play in a double elimination bracket, All matches will be played in a best-of-five setting.