2008–09 Peterborough United F.C. season
The 2008–09 season was Peterborough United's 49th year in the Football League and their first season in League One since the 2004–05 season, having been promoted from League Two in the previous season. Peterborough had a successful league campaign, finishing second, and in doing so, securing promotion to the Championship. Along with League One, the club also participated in the FA Cup, League Cup and Football League Trophy, in which they were knocked out in the third, first and second rounds respectively. The season covered the period from 1 July 2008 to 30 June 2009.
Squad
Fixtures and results
Football League One
League table
Matches
FA Cup
| Date | Round | Opponent | Venue | Result | Score F–A | Scorers | Attendance | |
| Round 1 | A.F.C. Hornchurch | Away | W | 1–0 | Craig Mackail-Smith | 3,000 | ||
| Round 2 | Tranmere Rovers | Home | D | 0–0 | 5,980 | |||
| Round 2 Replay | Tranmere Rovers | Away | W | 2–1 | Aaron McLean, Craig Mackail-Smith | 3,139 | ||
| Round 3 | West Bromwich Albion | Away | W | 1–1 | Craig Mackail-Smith | 18,659 | ||
| Round 3 Replay | West Bromwich Albion | Home | L | 0–2 | 10,735 |
League Cup
| Date | Round | Opponent | Venue | Result | Score F–A | Scorers | Attendance | |
| 12 August | Round 1 South | Bristol City | Away | L | 1–2 | George Boyd | 5,684 |
Johnstone's Paint Trophy
| Date | Round | Opponent | Venue | Result | Score F–A | Scorers | Attendance | |
| 7 October | Round 2 SE Section | Dagenham & Redbridge | Home | L | 0–1 | 2,644 |