The 1977–78 County Antrim Shield was the 89th edition of the County Antrim Shield, a cup competition in Northern Irish football.[1]
Glentoran won the tournament for the 17th time, defeating Crusaders 1–0 in the final.[2][3]
1 Match abandoned at 0-0 due to crowd trouble. Cliftonville refused to play again and tie was awarded to Glentoran.