The 2008–09 European football season was Sport Lisboa e Benfica's 105th season and their 75th consecutive season in the top flight of Portuguese football. The season ran from 1 July 2008 to 30 June 2009, with Benfica competing domestically in the Primeira Liga, Taça de Portugal and Taça da Liga. The club also participated in the UEFA Cup, since they finished fourth in the Primeira Liga the previous season.