Welsh Premier League 2017-18

The 2017–18 Welsh Premier League (known as the Dafabet Welsh Premier League for sponsorship reasons) was the 26th season of the Welsh Premier League, the highest football league within Wales since its establishment in 1992.

UEFA Europa League play-offs
Teams who finish in positions fourth to seventh at the end of the regular season will participate in play-offs to determine the third participant for the 2018–19 UEFA Europa League, who will qualify for the first qualifying round.