Joseph Osei-Bonsu (born 8 February 1948) is a Ghanaian Catholic prelate who was the Bishop of the Roman Catholic Diocese of Konongo-Mampong in the Metropolitan Ecclesiastical Province of Kumasi in Ghana. He was appointed bishop by Pope John Paul II on 3 March 1995. He was consecrated as bishop on 28 May 1995 and installed at Mampong, Ghana on 11 June 1995. His age-related retirement was accepted by Pope Francis on 21 March 2024. While in retirement, he served as Apostolic Administrator of Konongo-Mampong from 21 March 2024 until 7 June 2024.