Andrej Glavan (born 16 October 1943) is a Slovenian Roman Catholic prelate who served as the first bishop of the Diocese of Novo Mesto from its creation on 7 April 2006 until his retirement on 30 June 2021.

Also, he was a Titular Bishop of Musti in Numidia and Auxiliary Bishop of the Archdiocese of Ljubljana from 13 May 2000 to 7 April 2006, an Apostolic Administrator during the vacancy of the Archdiocese of Ljubljana from 31 July 2013 to 23 November 2014, and president of the Episcopal Conference of Slovenia from 31 July 2013 to 13 March 2017.

After a few months of internship at the Iskra factory in Žužemberk and one-year of compulsory military service in the Yugoslavian Army, he entered to the Major Theological Seminary in Ljubljana, where graduated in 1972[1] and was ordained a priest on 29 June 1972 for the Roman Catholic Archdiocese of Ljubljana,[2] after completed his philosophical and theological studies.

On 12 June 2000, he was consecrated as bishop by Metropolitan Archbishop Franc Rodé and other prelates of the Roman Catholic Church in the Cathedral of St. Nicholas in Ljubljana.

But on 7 April 2006 Bishop Glavan was transferred to the newly created Diocese of Novo Mesto.