Bloomfield Football Club (previously known as 24th Old Boys), referred to simply as Bloomfield, is a Northern Irish intermediate football club playing in Division 1C of the Northern Amateur Football League. They are nicknamed the Purple Army. They are based in Ballyhackamore, Bloomfield, east Belfast.

The club formed in the 1922 as the 24th O.B., composed of former members of the 24th Belfast Boys' Brigade company. In 1990, they changed their name to Bloomfield upon joining the Amateur League (having spent some 30 years in the BB Old Boys' Union League.

The club was formed in 1922 as 24th Old Boys Football Club and played in the Boys' Brigade Old Boys League. They would meet in Bloomfield Presbyterian Church, Ballyhackamore, a tradition that the 24th Boys Brigade still do every on a weekly basis.

In the Old Boys League, they won Multiple Division 1 League Titles, the Old Boys Shield and the 14th Old Boys Cup.

In the 1990, the club joined the Northern Amateur Football League, and changed their name to Bloomfield. The name represents the location of the Old Boy's being based in the area of Bloomfield in east Belfast. This came following the diminishing Old Boys' League that ceased to exist in the 2000's.

Bloomfield's biggest cup victory came in 1997, when they won the Cochrane Corry Cup. They beat Lisburn Rangers F.C. 1-0 in the final. Bloomfield finished the season winning the double, as they won Division 2B.

In 2002, Bloomfield reached the Cochrane Corry Cup for the second time in their history. This time they were beat 3-2 by Rathfern Rangers.

In 2012, Bloomfield finished runners-up in Division 1C.