Jacobs Football Club was an Irish association football club based in Crumlin, Dublin. Jacobs were one of the founding members of the League of Ireland and played in the league from 1921–22 until 1931–32. Like several fellow early League of Ireland clubs, such as St James's Gate, Midland Athletic, Fordsons and Dundalk, Jacobs had their origins as a factory or works team. They were originally the football team of Jacobs Biscuit Factory. They remained active as a football club until at least the late 1960s, playing in the round of sixteen of the 1968–69 FAI Cup.