Tanjong Pagar United Football Club is a professional football club in Singapore. The club took part in Singapore's S.League from 1996 to 2004. The club withdrew from the S.League after the 2004 season because of financial problems but returned to the S.League in 2011.
Prior to the formation of the S.League, the team was known as Tiong Bahru Constituency Sports Club, and won Singapore's National Football League in 1983 and 1987. The club changed its name to Tiong Bahru United Football Club in 1996, and then to Tanjong Pagar United in 1998.
The team's mascot is a Jaguar. During its first run in the S.League, the club's home ground was the Queenstown Stadium. However, as the Queenstown Stadium was occupied since 2010 by French club Etoile FC, Tanjong Pagar United was based in Clementi Stadium for the duration of the 2011 season. However, due to Etoile FC's withdrawal from the S-League by the end of the 2011 season, Tanjong Pagar shifted back to Queenstown Stadium for the 2012 season.
The club were formed as Tiong Bahru Constituency Sports Club in 1975 and debuted in Division III of the National Football League, from which they were promoted as champions in 1978. This was followed by a second successive promotion in 1979, bringing the Jaguars to Division I. In 1982, they won the President's Cup and the following year, they were national league champions. They represented Singapore in the 1984 ASEAN Club Games, finishing third, then captured The Double in 1987. The early 1990s saw further successes, as they were Pools Cup winners in 1991 and 1993, finished runners-up in the FAS Premier League from 1991 to 1993 and bagged the FA Cup in 1994. Their strong performances led to their selection as one of eight clubs to compete in the newly formed S.League, so in 1995, they were renamed to Tiong Bahru Football Club and obtained a permanent home at the Queenstown Stadium.
The 1996 season of the S.League was split into two series. Tiger Beer Series winners Geylang United defeated Pioneer Series winners Singapore Armed Forces in the Championship playoff to clinch the S.League title.
2003 saw the introduction of penalty shoot-outs if a match ended in a draw in regular time. Winners of penalty shoot-outs gained two points instead of one.
Tanjong Pagar United sat out the S.League from 2005 to 2010.