Линфилд
Byrne was a midfielder who represented Bohemian F.C., Shamrock Rovers, Shelbourne, Linfield F.C., Newry Town and Bray Wanderers during his career in Ireland. He made his League of Ireland debut for Bohs on 27 September 1987 in a 4-1 hammering by Rovers. During his time at Dalymount Park he won the FAI Cup in 1992. In total he played 132 games (123 plus 9 as sub) scoring 4 goals. He played in every single position while at Dalymount. On one occasion he took over in goal after Dermot O'Neill got sent off against Shamrock Rovers.