The Co-Cathedral of Christ the Saviour [1] (Slovene: Stolna cerkev Kristus Odrešenik), also called Nova Gorica Cathedral, is the name given to a religious building that is affiliated with the Catholic Church and serves as the co-cathedral or alternate cathedral of the Diocese of Koper.

It is located in Nova Gorica, a city in the European country of Slovenia.

[2] It was built in 1982 by architect Franc Kvaternik project.

Inside the image of Christ and the cross made of wood, painted by Stane Jarm.

[3] On March 15, 2004, during the pontificate of Pope John Paul II the church was declared co-cathedral of the diocese with the decree "Ut spirituali" of the Congregation for Bishops (Congregatio pro Episcopis).