Shamrock Rovers began the season with a 2–0 win over Dundalk in the Leinster Senior Cup at Oriel Park on 22 February.

After beating Flora Tallinn Rovers were knocked out by FC Copenhagen, and entered the Europa League qualifiers.

Shamrock Rovers also won the All-Ireland tournament, the Setanta Sports Cup, beating Dundalk in the final at Tallaght.

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On 13 February, Rovers played their next pre-season friendly against First Division side, Monaghan United in front of a crowd of just 400.

Win Draw Loss The fixtures for the 2011 season was announced on 23 December 2010, and revealed that Rovers would begin their league campaign against Dundalk at Tallaght Stadium on 4 March 2011.

Source: extratime.ie Shamrock Rovers, along with the other 20 League of Ireland clubs, entered the 2011 FAI Cup in the third round,[7] the draw for which was made on 9 May 2011.

[8] Goals from Gary McCabe, Chris Turner, Dean Kelly and Billy Dennehy gave Rovers a 4–0 victory and ensured their place in the next round.

[9] A replay was required to determine the winner of the fourth round tie between Rovers and UCD after the first match ended in a 2–2 draw.

[10] Having played Partizan Belgrade away in the Europa League just 4 days previously, manager O'Neill decided to alter his starting line-up.

[10] Pat Flynn, Rovers' captain on the night,[10] was then sent off in the 80th minute for a cynical block on a UCD player as the last man.

[10] The draw for the quarter-finals was made before the replay; the winner would face either Sligo Rovers or Monaghan United, who had also drawn their fourth round tie.

[14] This was the only goal of the game, although Sligo's Richie Ryan hit the woodwork with a free-kick and both teams had penalty claims turned down.

[14] Shamrock Rovers, along with St Patrick's Athletic in Pool 3, received a bye to the second round of the 2011 League of Ireland Cup,[15] the draw for which was made on 30 March 2011.

[20] Bohemians had been due to play Sporting Fingal in the previous round, but received a bye as the opposition club was dissolved.

[21] As winners of the 2010 League of Ireland, the club received a bye into the quarter-finals,[22] where they played against IFA Premiership side Lisburn Distillery, who had overcome UCD in the first round.

Gary Liggett capitalised on Pat Flynn's mistake to give Lisburn an early lead before Kilduff equalised for Rovers.

Ronan Finn's long-range goal and Karl Sheppard's header gave Rovers a 2–0 win over the home side, who had John Russell sent off 15 minutes after coming on as a substitute.

[52] In the previous season, Partizan had reached the group stages of the Champions League,[51] so many considered Shamrock Rovers the underdogs.

[54] Rovers started the game with a defensive tactic, but were unable to prevent Nemanja Tomić scoring after only 14 minutes following a dominant opening from the away side.

[55] Partizan were again the better side in the beginning of the second half,[55] however the introduction of Gary O'Neill brought Shamrock Rovers back into the game as an attacking force.

The team started the game nervously and could have conceded after only 3 minutes but for Vladimir Jovancic shooting wide when one-on-one with the goalkeeper.

[58] The breakthrough for Rovers came in the 58th minute - a spectacular volley from Patrick Sullivan put the teams back on level terms again.

[59] Rovers were fortunate to remain level in the game following Stefan Babović's free-kick which hit the woodwork[58] and a reckless challenge by Ryan Thompson which could have resulted in a penalty to the home side.

Ciarán Kilduff's shot was only parried away as far as Karl Sheppard, who was taken down inside the penalty area by the Partizan goalkeeper before he could shoot.

[60] Shamrock Rovers won 3–2 on aggregate The draw for the Europa League Group Stages took place on 26 August in Monaco.

[64] Both sides missed penalties in the match,[63] although goals from Christian Noboa and Gökdeniz Karadeniz in the second half ensured victory for Rubin Kazan.

[65] Stephen O'Donnell cleared Roman Pavlyuchenko's header off the line to maintain the deadlock at the end of the first half.

[67] In the return leg in Dublin, PAOK scored three goals in the first half as they comfortably won the game 3–1, and in doing so eliminated Rovers from the competition.

[69] The club's European campaign concluded with a 4–0 home defeat to Tottenham Hotspur; a result that meant that Rovers failed to pick up any points during the group stage.