Saint Nedelya Cathedral, is an Eastern Orthodox cathedral in Sofia, the capital of Bulgaria, a cathedral of the Sofia bishopric of the Bulgarian Patriarchate. The temple of Sveta Nedelya dates back to the 10th century, being a cathedral of the city from the 18th century. The sacred building has suffered destruction through the ages and has been reconstructed many times. The present building of the temple is among the landmarks of Sofia. It was designed by the famous Bulgarian architectural team Vasilyov-Tsolov. The relics of the Serbian king Stefan Uroš II Milutin are kept in the church.

Sofia is the capital and largest city of Bulgaria. It is situated in the Sofia Valley at the foot of the Vitosha mountain, in the western part of the country. The city is built west of the Iskar river and has many mineral springs, such as the Sofia Central Mineral Baths. It has a humid continental climate. Being in the centre of the Balkans, it is midway between the Black Sea and the Adriatic Sea and closest to the Aegean Sea.