STM Sports Association Football Club was a Welsh football club. They were based in St Mellons, Cardiff and played at Cardiff University Sports fields.
History
Regional leagues
The club was formed mostly from players of the Cardiff Cosmos Portos, coupled with players from Sunday League side Willows FC. They played originally in the Cardiff Combination League, before moving to the South Wales Amateur League for the 2010–11 season where they were crowned Division Two champions at their first attempt. The following season in Division One saw the club finish seventh position, whilst the following year saw them finished in fifth position and also saw them win the South Wales FA Senior Cup.
The 2013–14 season saw them finished fourth place, with promotion to the Welsh Football League obtained at the end of 2014–15 season, finishing as Champions. The club had to lodge an appeal with the Football Association of Wales to secure promotion and then defeated Pontlottyn 4–1 at Cardiff City Stadium in the SWFA promotion play-off. The match also featured the unusual situation of one of the club's players being arrested during the match by police officers for an outstanding charge of assault and failing to answer to court.
Welsh Football League
In the first season in Division Three, the club finished in fourth place before improving on that for the 2016–17 season, finishing second to Llantwit Major and gaining promotion to Division Two. In their first season in Division Two the club finished in fourth place, before being crowned champions in the 2018–19 season. The season included a record 20–0 Welsh League Cup away win over Caerau which saw five STM Sports players score hat-tricks.
The team also reached the semi-final of the FAW Trophy before losing in extra time to Cefn Albion in a match that was marred by claims of racism against two STM Sports players by supporters of Cefn Albion. Both clubs were later charged by FA Wales in relation to potenti