The club was formed in 1903 playing in various local grounds, before settling at their current home of the High Street ground in the late 1940s. The club played in the West Sussex Football League, winning their first league title in the 1938–39 season, and then winning it a further five times after the Second World War. While in the West Sussex Football League, the club also won the Sussex County FA Intermediate Cup in the 1958–59 campaign. The 1960–61 season saw the club win their last of their six West Sussex Football League titles and gain promotion to Division Two of the Sussex County Football League. The club finished as runners up in their first season, and repeated this finish in the next seasons. The 1963–64 campaign saw the club do a double by finishing top of the division and winning the Division two cup, they also gained promotion to Division one. The club then spent five seasons in Division one before being relegated back to Division two, at the end of the 1968–69 competition, during which time they made their debut in the FA Cup in the 1967–68 season. It took the club another seven seasons before they reached Division one, again as champions of Division two. However they could only spend two seasons in Division one before being relegated and the club took another nine seasons before they bounced back up as runners up in the 1986–87 competition. After just four seasons the club was once again relegated to Division two, when they finished bottom of the division in the 1990–91 season. As before the club eventually bounced back up to Division one when at the end of the 1995–96 campaign they finished in the runners-up position. The club in January 2000 employed former Brighton & Hove Albion defender, Danny Hinshelwood as player manager at the age of 24. Under his management the club went on to win the Sussex Royal Ulster Rifles Charity Cup in the 2001–02 season, followed by the John O'Hara League Cup the following season. In their eighth season in Division one Hinselwood left the club in July 2003 due to the club reducing the playing budget, and the club was relegated at the end of the season. Manager Danny Hinselwood returned to the club the following season after Richie Reynolds resigned and in the 2005–06 season, they finished as runners-up in Division Two and were promoted to Division One. Hinselwood stayed till November 2009, when he resigned and was replaced by Gary Block, during which time he guided the club to another Sussex RUR cup final in the 2007–08 campaign where they lost to Three Bridges 4–0. However Gary block only stayed for a season before resigning and was replaced with Adam Hinshelwood. Adam Hinselwood then guided the club to their third Sussex RUR cup final, but they lost to Rye United 2–0. Adam Hinselwood then quit the club at the end of the season to join Burgess Hill Town, as assistant manager. Richard Towers then took over as manager, but only remained in charge for a few months before he resigned and Adam Hinselwood returned in November 2012 to take over as manager again. 2017/2018 saw a move away for Selsey legend and fans favourite James "Snips" Parsons, although still there in heart a move to London meant a change however, he vowed to return to Selsey in the future.
Ground
Selsey play their home games at High Street Ground, High Street, Selsey, Sussex, PO20 0QG.
Honours
League honours
Sussex County Football League Division Two:
*Champions : 1963–64, 1975–76
*Runners up : 1961–62, 1962–63, 1986–87, 1995–96, 2005–06,
