During the 1999–2000 English football season, Peterborough United Football Club competed in the Football League Third Division where they finished in 5th position on 78 points and gained promotion to the Football League Second Division via the play-offs.

Peterborough United's score comes first Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

Appearances for competitive matches only Peterborough United 1999–2000 at soccerbase.com (use drop down list to select relevant season)