The club was elected to Division Two of the Southern Football League.

Swansea's first official match was played on 7 September 1912 against local rivals Cardiff City at the Vetch Field.

All of Swansea's home games for the 1912–13 season were played on a 'Clinker pitch'.

[1] After a 24-game season the club finished third, narrowly missing out on promotion.

The club also entered the Welsh Cup and won it at the first attempt, beating Pontypridd 1–0 in a re-played final.