Olympique de Marseille ( French: [ɔlɛ̃pik də maʁsɛj] , locally [olɛ̃ˈpikə də maχˈsɛjə] ; Occitan : Olimpic de Marselha , pronounced [ulimˈpi de maʀˈsejɔ] ), also known simply as Marseille , or by the abbreviation OM ( IPA: [o.ɛm] , locally [oˈɛmə] ), is a French professional football club based in Marseille which competes in Ligue 1 , the top flight of French football . Marseille play their home matches at the Stade Vélodrome . [ 4 ] OM is one of the most popular football clubs in the country, having regularly averaged the highest attendance in French football. They have a long-standing rivalry with Paris Saint-Germain , against whom they contest Le Classique .
