Brian O'Neill is a former professional footballer from Ireland, known for his versatility on the field. He primarily played as a defender and had a career spanning several clubs, including Cork City and Derry City. O'Neill was recognized for his strong defensive skills and ability to contribute to the team's overall performance. Throughout his career, O'Neill also represented the Republic of Ireland at various youth levels. His dedication to the sport and his contributions to his teams have made him a respected figure in Irish football. After retiring, he continued to be involved in the sport, sharing his experience with younger players.