The 2006–07 Irish Premier League was the 106th edition of the Irish League, the highest level of league competition in Northern Irish football, and the 4th edition in its current format (as the Irish Premier League) since its inception in 2003.
Linfield won the league for the 47th time and 2nd consecutive season.
The season began on 23 September 2006, and ended on 28 April 2007. Linfield was the defending champion, and successfully defended the title by 8 points to become champions for the 47th time. Loughgall was relegated after finishing bottom of the table, while Glenavon survived after beating Bangor 4–2 on penalties in the promotion play-off following a 1–1 draw on aggregate after extra time in the second leg.
Each team played every other team twice (home and away) for a total of 30 games.
Glenavon, the club that finished in the relegation play-off place, faced Bangor, the runners-up of the 2006–07 Irish First Division in a two-legged tie for a place in next season's Irish Premier League.
Glenavon won the tie 4–2 on penalties after a 1-1 aggregate draw and retained their Premiership status.
1-1 on aggregate. Glenavon won 4–2 on penalties and remained in the Irish Premier League
