2021 Cork Lower Intermediate Hurling Championship

The 2021 Cork Lower Intermediate Hurling Championship was the second and final staging of the Cork Lower Intermediate Hurling Championship since its establishment by the Cork County Board in 2020. The draw for the group stage placings took place on 29 April 2021. The championship began on 12 September 2021 and ended on 20 November 2021.

The final was played on 20 November 2021 at Páirc Uí Chaoimh in Cork, between Lisgoold and Kilbrittain, in what was their first ever meeting in a final in this grade. Lisgoold won the match by 2-19 to 0-14 to claim their first championship title.

To Championship
Promoted from the Cork Junior A Hurling Championship
 * Lisgoold

Relegated from the Cork Intermediate A Hurling Championship
 * Argideen Rangers

From Championship
Promoted to the Cork Intermediate A Hurling Championship
 * Castlemartyr

Relegated to the South East Junior A Hurling Championship
 * Ballymartle