Brian Hennessy (born 29 August 1969) is an Irish retired hurler who played as a right corner-back for the Offaly senior team.
Born in Birr, County Offaly, Hennessy first played competitive hurling in his youth.
He first came to prominence on the inter-county scene when he first linked up with the Offaly minor team, before later joining the under-21 side.
He made his senior debut during the 1990-91 National League and immediately became a regular member of the team.
During his career he won a National Hurling League medal on the field of play.