The 2016–17 Irish Cup (known as the Tennent's Irish Cup for sponsorship purposes) was the 137th edition of the premier knock-out cup competition in Northern Irish football since its introduction in 1881. The competition began on 19 August 2016 and concluded with the final at Windsor Park on 6 May 2017. Glenavon were the defending champions, after they lifted the cup for the seventh time by defeating Linfield 2–0 in the 2016 final. They were eliminated at the semi-final stage. The competition was won by Linfield, who defeated Coleraine 3-0 in the final.