The club, re-formed in 1975 after being dormant since the 1960s, hails from Ballinamallard, near Enniskillen, County Fermanagh, and plays its home matches at Ferney Park.

[1] In February 2011 the club reached its first ever Irish Cup quarter final when it defeated Lisburn Distillery 4–2 after a 6th Round replay at Ferney Park.

They secured a 2–2 draw at Ferney Park in their opening Premiership fixture against Dungannon Swifts, and their stand out results during the season included a 1–0 away win over eventual league champions Cliftonville at Solitude in September 2012.

The Mallard's Irish Cup campaign was a disappointing one going out in the 5th Round on penalties to Coleraine after surrendering a two-goal lead in the second half.

The drama took yet another turn when in the 94th minute of the game at Taylor's Avenue in the final minute of stoppage time, Miguel Chines scored a stunning bicycle kick to win the game for Carrick Rangers meaning in fact that they would be safe prompting wild celebrations from the Carrick supporters meaning now that Ballinamallard would be automatically relegated to Championship 1 and Warrenpoint would contest the play-off.

In the final turn, Warrenpoint Town conceded a controversial penalty in the dying seconds of their game with Andrew Mitchell putting it away to make it 1–1 now automatically relegating Warrenpoint Town and Ballinamallard United contesting the play-off with Institute where they managed to beat the Drumahoe side 2–1 away from home and drew 3–3 at Ferney Park to secure the club's premier league status for the 2016–17 season.

On 30 March 2019 Ballinamallard United reached their first ever Irish Cup final by beating Warrenpoint Town in a penalty shoot-out.