List of Shamrock Rovers F.C. seasons

This is a list of seasons played by Shamrock Rovers Football Club in Irish and European football, from 1922 (year of entry into the League of Ireland) to the most recent completed season. The list details the club's achievements in all major competitions, and the top scorers for each league season.

Shamrock Rovers are recognised as being founded in 1901 (some sources suggest 1899), and were elected to the League of Ireland in 1922. They reached the final of the inaugural FAI Cup in the season before their election to the league and won the league title at their first attempt the following year. The club have won the League of Ireland a record 17 times, the FAI Cup a record 24 times, the League of Ireland Shield a record 18 times, the League of Ireland Cup once and have participated in European competition since 1958, when they became the first Irish side to do so. The club have finished bottom of the league once in their 94 seasons of participation, when they had to apply for re-election in 1976. The club were relegated for the first time in 2005 following an eight-point deduction and a play-off with Dublin City. Shamrock Rovers are the most successful club in the Republic of Ireland's footballing history.

Key
Division shown in bold when it changes due to promotion or relegation. Top scorers shown in bold are players who finished the season as top scorer of their division.

Key to league record:
 * P = Played
 * W = Games won
 * D = Games drawn
 * L = Games lost
 * F = Goals for
 * A = Goals against
 * Pts = Points
 * Pos = Final position

Key to divisions:
 * Premier = LOI Premier Division
 * First = LOI First Division

Key to rounds:
 * DNQ = Did not qualify
 * QR = Qualifying Round
 * PR = Preliminary Round
 * R1 = First Round
 * R2 = Second Round
 * R3 = Third Round
 * R4 = Fourth Round
 * R5 = Fifth Round


 * Grp = Group Stage
 * QF = Quarter-finals
 * SF = Semi-finals
 * RU = Runners-up
 * W = Winners