The Northern Ireland Football League Championship (known as the Playr-Fit Championship for sponsorship reasons) is the second level of the Northern Ireland Football League, the national football league in Northern Ireland.

In its current format, 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,[1] though was marketed as the IFA Championship.

The B Division of the Irish League was founded in 1951, and originally consisted of the reserve teams of the senior Irish League clubs alongside some of the top intermediate clubs.

There was no promotion to the senior Irish League, although clubs could be elected to the senior league; Larne were elected in 1972 to replace Derry City, Carrick Rangers and Newry City were elected in 1983 when the Irish League expanded from 12 to 14 clubs, and Ballyclare Comrades and Omagh Town in 1990 when the league expanded to 16 clubs.

Under reforms agreed by the NIFL clubs in 2014, from 2016, the current Championship 1 will acquire senior status, continuing as the NIFL Championship, while Championship 2 will continue as the Premier Intermediate League, retaining its intermediate status and will thus become the top intermediate league in Northern Ireland.