The 2012–13 season was Udinese Calcio's 33rd season in Serie A, and their 18th consecutive season in the top-flight. Having finished 3rd in the 2011–12 Serie A, the team qualified for the play-off round of the 2012–13 UEFA Champions League. Defeated by Braga, Udinese dropped down to the group stage of the UEFA Europa League. The club also competed in Serie A and the Coppa Italia.

As of 14 August 2012

Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

Source: Lega Serie A
Rules for classification: 1st points; 2nd head-to-head points; 3rd head-to-head goal difference; 4th goal difference; 5th number of goals scored; 6th public draw.
(Head-to-head record is applied for clubs with the same amount of points only once all matches between said clubs have been played)
¹Lazio qualified to 2013–14 UEFA Europa League group stage after winning 2012–13 Coppa Italia.
²Sampdoria and Torino were docked 1 point due to involvement in the 2011–12 Italian football scandal.
³Atalanta was docked 2 points due to involvement in the 2011–12 Italian football scandal.
⁴Siena was docked 6 points due to involvement in the 2011–12 Italian football scandal.
(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.

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