The 2018–19 Legia Warsaw season is the club's 102nd season of existence, and their 82nd in the top flight of Polish football. Legia entered the 2018–19 season as the defending Ekstraklasa champions.
Source: Ekstraklasa, 90minut Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference; 4) Head-to-head goals scored; 5) Head-to-head away goals scored (only if two teams); 6) Goal difference; 7) Goals scored; 8) Fairplay ranking; 9) Draw. (Note: Head-to-head record is used only after all the matches between the teams in question have been played.) Notes:
Source: Ekstraklasa, 90minut Rules for classification: 1) Points; 2) Points in regular season; 3) Head-to-head points in regular season; 4) Head-to-head goal difference in regular season; 5) Head-to-head goals scored in regular season; 5) Head-to-head away goals scored in regular season (if only two teams); 7) Goal difference; 8) Goals scored; 9) Fairplay ranking; 10) Play-off (only if needed to decide champion, teams for relegation or teams for UEFA competitions).[15] (C) Champions Notes:
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