The 2012–13 Irish Cup was the 133rd edition of the premier knock-out cup competition in Northern Irish football since its introduction in 1881. The competition began on 15 September 2012 with the first round and ended on 4 May 2013 with the final. The cup was sponsored by JJB Sports until October 2012, when the company went into administration. The competition remained without a principal sponsor, but the final was known as the Marie Curie Irish Cup final, after the IFA awarded the naming rights for the final to the charity Marie Curie Cancer Care.