text: Crest and nicknames Lille's crest has changed many times. The first crest of the newborn club was simply the escutcheon of the city of Lille dating from 1235 that shows an argent-on-gules fleur-de-lys. The fleur-de-lys refers to the name and the insularity of the city. "Lille", or "Lile" and "Lysle" depending on the past forms, is phonetically close to "Lisle", an old spelling of "Lys". The lys also makes reference to the water flag, which were rife through the marshes surrounding the city. The colours of the heraldry, argent (white) and gules (red), embody wisdom and wealth for the first one, and passion and faithfulness for the second.
  White and red were the colours of Olympique Lillois while blue, traditional colour of the team shorts, refers to SC Fives and is also present in the first-ever club crest from 1946. Red remains the main colour used by the club in its imagery, on its website or its social media.
  The club adopted the colours of his founding and merging parents, and the fleur-de-lys symbol that can be seen in the first badges. In 1981, the mastiff appeared for the first time in the club crest and has never left it. The nickname, Les Dogues (French for "The Mastiffs"), evokes and emphasizes the team's aggressiveness and dedication, and was first used in the 1920s for Olympique Lillois players. Other nicknames or designations are frequently used, like Les Nordistes (French for "The Northmen") or Les Lillois (), the demonym corresponding to Lille.