Democratic Progressive Party
Parti Demokratik Progresif
Singapore United Front
Barisan Bersatu Singapura

Previous name: United Front
Registered: 16 March 1973
Symbol: Sun ● Hoe, pen & circle
Started by a splinter group of former WP leaders, UF changed its name to SUF on 5 March 1982, at its 9th anniversary, to avoid confusion with UPF. In 1988, most of its members rejoined their hinderland party, WP. Widely thought to have been dissolved, it was kept in the backburner. In 1992, the few who concealed their dual membership left WP again to revive it and quietly renamed it DPP, claiming it was a newly registered party. A father-and-son pair contested the 1997 and 2001 General Elections. Both were expelled in 2002 for defying party decision not to contest. After more than ten years of relative inactivity, it was revived by several former SPP members in 2013.