| Type: | priest |
| Wolfgang Nastainczyk | |
| Dean Emeritus of the University of Regensburg | |
| Diocese: | Regensburg |
| Ordination: | 9 June 1957 |
| Birth Name: | Wolfgang Hermann Heinrich Nastainczyk |
| Birth Date: | 1 January 1932 |
| Birth Place: | Leobschütz, Upper Silesia, Weimar Germany |
| Death Place: | Regensburg |
| Nationality: | German |
| Religion: | Roman Catholic |
| Residence: | Regensburg, Germany |
Wolfgang Nastainczyk (1 January 1932 – 13 December 2019)[1] was a German theologian, lecturer and priest who taught at the University of Regensburg alongside Joseph Ratzinger (now Pope Benedict XVI). He was the cousin of German theologian, Johannes Tenzler.[2] Nastainczyk was born in Leobschütz, Upper Silesia, the son of Josef Nastainczyk and Gertrud Tenzler and was ordained a Roman Catholic priest on 9 June 1957.
On 5 April 2011, Nastainczyk published a complete history of Christianity in Silesia entitled . This book took Nastainczyk ten years to research and write and begins its history in the year 950AD. The book also discusses relations between Christians and Jews in the area throughout history and the impacts of Nazism, the Second World War and the Anschluß on the region.