2003–04 in Welsh football
This article lists major events during the 2003-04 season in Welsh football.
Wales almost qualified for Euro 2004 in Portugal. They finished 2nd in a group that contained Italy, Serbia-Montenegro and Finland and made the play-offs. The Euro 2004 Qualifying play-offs pitted Wales with Russia. A 0-0 draw in a cold November evening in Moscow was followed by a 1-0 defeat in Cardiff.
Welsh League Cup
Welsh Premier League
Barry Town entered administration in the summer of 2003 having attained just 3 wins during a disastrous season and were relegated to the Welsh Football League Division One. All of their best players from the 2002-03 title winning season left and the amateur players who replaced them finished bottom of the league. The biggest win of the season in Wales was Caernarfon's 8-0 defeat of Barry Town on 30 August 2003.