The 2008–09 season was Associazione Sportiva Roma's 76th season in Serie A. The club competed in four competitions; domestically, Roma finished a disappointing 6th, after three consecutive second-place finishes. They began the season by losing the Supercoppa Italiana to Inter, who also eliminated Roma in the quarter-finals of the Coppa Italia.

Having finished 2nd the previous season, Roma qualified automatically to the group stage of the 2008–09 UEFA Champions League. Roma managed to finish top of their group, but were eliminated in the round of 16 by English club Arsenal in a penalty shoot-out.

Last updated: 3 August 2008
Source: A.S. Roma

As of 27 August 2008:
In italics, players involved in transfer during the season

Last updated: 31 May 2009

Source: lega-calcio.it (Italian)
Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference; 4) head-to-head goals scored; 5) goal difference; 6) number of goals scored
¹Lazio qualified for the play-off round of the 2009–10 UEFA Europa League by winning the 2008–09 Coppa Italia.
(C) = Champion; (R) = Relegated; (P) = Promoted; (E) = Eliminated; (O) = Play-off winner; (A) = Advances to a further round.
Only applicable when the season is not finished:
(Q) = Qualified to the phase of tournament indicated; (TQ) = Qualified to tournament, but not yet to the particular phase indicated; (RQ) = Qualified to the relegation tournament indicated; (DQ) = Disqualified from tournament.
Head-to-Head: used when head-to-head record is used to rank tied teams.

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