The 1969–70 Irish Cup was the 90th edition of the Irish Cup, the premier knock-out cup competition in Northern Irish football.

Linfield won the cup for the 30th time, defeating Ballymena United 2–1 in the final at Solitude.

[1] The holders Ards were eliminated in the first round by Crusaders.

To date, this was the final Irish Cup final to be held at Solitude.

[2] Source:[3]