|Champions||DCU (5th win)|
|Relegated team(s)||Athlone Institute of Technology|
The 2020 Sigerson Cup was the 110th staging of the Sigerson Cup since its establishment by the Gaelic Athletic Association in 1911. It was sponsored by Electric Ireland, and known as the Electric Ireland HE GAA Sigerson Cup for sponsorship purposes.
The draw for the eight first round fixtures took place on 4 December 2019.
2019 winners UCC met NUI Galway in the tie of the first round, while defeated finalists St Mary's were drawn against Maynooth University. 2018 champions UCD met UUJ. Eventual 2020 champions DCU met Garda College, while the remainder of the ties largely involved an assortment of institutes of technology and polytechnics. Play began on 11 January 2020, with Queen's University Belfast winning their first round tie.
- Keane, Paul (29 January 2020). "Dominant DCU secure fifth Sigerson Cup crown". Irish Independent. Retrieved 29 January 2020.
- McKenna, Conor (19 January 2020). "Brosnan steps down after IT Tralee preserve Sigerson status". Irish Examiner. Retrieved 19 January 2020.
- O'Toole, Fintan (4 December 2019). "Here are the draws for the 2020 Fitzgibbon and Sigerson Cup competitions". The42.ie. Retrieved 4 December 2019.