The Cathedral of St. Theresa of Avila is a Latin Catholic cathedral and minor basilica located in Subotica, Serbia, the seat of the Diocese of Subotica. It is dedicated to Saint Theresa of Avila.

Subotica is a city and the administrative center of the North Bačka District in the autonomous province of Vojvodina, Serbia. Formerly the largest city of Vojvodina region, contemporary Subotica is now the second largest city in the province, following the city of Novi Sad. According to the 2022 census, the city itself has a population of 94,228, and the population of metro area stands at 123,952 people.