2004–05 in Welsh football
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National team
Welsh Cup
Total Network Solutions beat Carmarthen Town 1–0 in the final of the Welsh Cup.
Welsh League Cup
Carmarthen Town beat Rhyl 2–0 in the final of the Welsh League Cup.
Welsh Premier League
- Champions: Total Network Solutions
- Relegated to Welsh Football League Division One: Afan Lido
Welsh Football League Division One
- Champions: Ton Pentre - did not apply for promotion to Welsh Premier League therefore Cardiff Grange Quins promoted to Welsh Premier League
Cymru Alliance League
- Champions: Buckley Town - did not apply for promotion to Welsh Premier League