[1] The season began on 12 August 2016 and ended on 22 April 2017; the Europa League play-offs will follow afterwards.
Teams played each other twice on a home and away basis, before the league split into two groups at the end of January 2017 – the top six and the bottom six.
Haverfordwest County and Port Talbot Town were relegated out of the Welsh Premier League the previous season, while Cefn Druids were promoted as winners of the Cymru Alliance and Cardiff Metropolitan University were promoted as winners of Welsh Football League Division One.
Teams play each other twice on a home and away basis, before the league split into two groups – the top six and the bottom six.
The league's rules are contained as a section of the Handbook of the Football Association of Wales.