This article lists major events during the 2002-03 season in Welsh football.
See main article: Wales national football team.
See main article: Welsh Cup. Barry Town beat Cwmbran Town in penalties in the Welsh Cup Final; the score after extra time was 2-2.[1]
See main article: Welsh League Cup. Rhyl beat Bangor City 4–3 in penalties in the final of the Welsh League Cup. The score after extra time was 2-2.
See main article: Welsh Football League Division One.
See main article: Cymru Alliance.