Marjan Turnšek (born 25 July 1955) is a Slovenian Roman Catholic prelate who served as the first bishop of the newly created Diocese of Murska Sobota from 7 April 2006 until 28 November 2009, coadjutor archbishop of Archdiocese of Maribor from 28 November 2009 until 3 February 2011 and as an archbishop of the same archdiocese since 3 February 2011 until his resignation on 31 July 2013.

After finishing primary school and graduation a classical gymnasium in his native city Celje in 1974, he was admitted to the Major Theological Seminary in Ljubljana and in the same time joined the Theological Faculty at the University of Ljubljana, where studied from 1974 until 1981[1][2] and was ordained as priest on June 28, 1981 for the Roman Catholic Diocese of Maribor by Bishop Franc Kramberger,[3] after completed his philosophical and theological studies.

[1] On April 7, 2006, he was appointed by Pope Benedict XVI as the diocesan bishop of the newly erected Roman Catholic Diocese of Murska Sobota.

On June 25, 2006, he was consecrated as bishop by Metropolitan Archbishop Franc Kramberger and other prelates of the Roman Catholic Church in the Cathedral of Saint John the Baptist in Maribor.

[1] He resigned on July 31, 2013 before reaching of the age limit of 75 years old,[3] due to his partial responsibility for the financial crisis of the archdiocese,[4] and continued to teach at the Faculty of Theology of the University of Ljubljana.