Brendan O'Sullivan (born 19 July 1965) is an Irish retired hurler who played as a centre-back for the Cork senior team. Born in Innishannon, County Cork, O'Sullivan first arrived on the inter-county scene at the age of sixteen when he first linked up with the Cork minor team before later joining the under-21 and junior sides. He joined the senior panel during the 1989 championship. O'Sullivan subsequently became a regular member of the starting fifteen and won one All-Ireland medal and one Munster medal. At club level O'Sullivan won several championship medals in all grades with Valley Rovers.