The 2005 Cork Premier Intermediate Hurling Championship was the second staging of the Cork Premier Intermediate Hurling Championship since its establishment by the Cork County Board. The draw for the opening round fixtures took place at the Cork Convention on 12 December 2004. The championship began on 30 April 2005 and ended on 1 October 2005.
On 1 October 2005, Ballinhassig won the championship following a 1-16 to 1-11 defeat of Aghada in the final. This was their first championship title in the grade.
Aghada's Trevor O'Keeffe was the championship's top scorer with 1-45.