The club was established in 1938 as Lincoln Amateurs, but
World War II prevented them from joining a league until 1945, when they became members of the
Lincolnshire League. In 1960 they rejoined the Lincolnshire League and went on to win the league title in 1963–64. The club moved up to Division Two of the
Yorkshire League in 1967 and won the division at the first attempt, earning promotion to Division One. Lincoln United were Division One champions in 1970–71 and again in 1973–74. They went on to win the Supreme Division at the end of the season and moved back up to Division One of the Northern Counties East League. The
following season saw the club win the Division One title, securing promotion to the Premier Division. They went on to win the Premier Division in
1994–95 and were promoted to Division One of the
Northern Premier League. In
2022–23 Lincoln finished third-from-bottom of Division One East of the Northern Premier League, resulting in them facing an inter-step play-off with a club from the division below. After being beaten 2–1 by
Avro they were relegated to the Premier Division North of the
United Counties League. They were runners-up in the division the
following season, subsequently losing 3–1 to
Skegness Town in the play-off semi-finals. In
2024–25 the club were Premier Division North champions, earning promotion back to Division One East of the Northern Premier League.
Women's team Originally founded in 2017 as Hykeham Town Ladies, the club was renamed Lincoln United Women in 2020 when the club amalgamated with Lincoln United. The club were then members of the
East Midlands Regional Women's League Premier Division, having been promoted from Division One North following the curtailed 2019–20 season. In 2022–23 the team won the Lincolnshire FA County Women's Cup for the first time, defeating
Lincoln City Women 2–0 in the final. In 2023–24 the team completed a treble, winning all 18 league games to secure the league title and earn promotion to Division One Midlands of the
FA Women's National League, as well as winning the League Cup and the Lincolnshire FA County Women's Cup. ==Staff==