|Founded||2008 (as IFA Championship)|
|Number of teams||12|
|Level on pyramid||2|
|Promotion to||NIFL Premiership|
|Relegation to||NIFL Premier Intermediate League|
|Domestic cup(s)||Irish Cup|
|League cup(s)||Northern Ireland Football League Cup|
|Current champions||Newry City (2nd title) |
|Current: 2022-23 Season|
The Northern Ireland Football League Championship (known as the Lough 41 Championship for sponsorship reasons) is the second level of the Northern Ireland Football League, the national football league in Northern Ireland. Clubs in the Championship can be promoted to the highest national division - the NIFL Premiership, and relegated to the third level - the NIFL Premier Intermediate League.
It was founded in 2008 as the Premier Intermediate League for members of the previous IFA Intermediate League that met the new stricter membership criteria, though was marketed as the IFA Championship. In 2009, it was extended to two divisions: Championship 1 and Championship 2 with promotion and relegation between the two. In 2013, the Championship and Premiership became part of the Northern Ireland Football League, independent of the Irish Football Association (IFA).
Under reforms agreed by the Irish League clubs in 2014, Championship 1 acquired senior status from the 2016–17 season onwards, continuing as the NIFL Championship. Championship 2 became the NIFL Premier Intermediate League, retaining its intermediate status.
|Annagh United||Tandragee Road||Portadown||1,250 (100 seated)|
|Ards||Bangor Fuels Arena||Bangor||1,895 (500 seated)|
|Ballinamallard United||Ferney Park||Ballinamallard||2,000 (250 seated)|
|Ballyclare Comrades||Dixon Park||Ballyclare||5,333|
|Harland & Wolff Welders||Blanchflower Stadium||Belfast||3,000|
|Institute||Ryan McBride Brandywell Stadium||Derry||8,200|
|Newry City||The Showgrounds||Newry||2,275 (1,080 seated)|
|Queen's University||Upper Malone||Belfast||1,000 (330 seated)|