The 2019–20 Dr Harty Cup was the 100th staging of the Harty Cup since its establishment in hurling by the Munster Council of Gaelic Athletic Association in 1918.

[1] The draw for the group stage placings took place on 30 July 2019.

[2] The competition ran from 15 October 2019 to 1 March 2020.

Midlton CBS unsuccessfully defended its title in the semi-finals, losing to Christian Brothers College, Cork.

[3][4] St Flannan's College won the Harty Cup final on 1 March 2020 at Mallow GAA Complex, against Christian Brothers College, Cork, 1–15 to 1–12, their first ever meeting in a final, St Flannan's 22nd successive Harty Cup title overall and their first title having been won 15 years previous.