The Technical University of Sofia (Bulgarian: Технически университет - София) is Bulgaria's largest and foremost academic establishment for higher engineering education.

Founded on 15 October 1945 as part of the Higher Technical School (later renamed to State Polytechnic), it has been an independent institution since 1953, when the Polytechnic was divided into four separate technical institutes.

It has had its present name and university status since 21 July 1995 and has 14 main faculties based in Sofia, Plovdiv and Sliven, as well as 3 additional ones with education only in foreign languages — German, English and French.

With Decree No 237, published in the State Gazette issue 248 from 24.10.1945, of the National Assembly of Bulgaria, a school called "State Polytechnic" is created with Mechanical engineering faculty with four divisions - mechanical engineering, electrical engineering and mining and geology.

Since 1991 the Higher Institute of Mechanical and Electrical Engineering was renamed to Technical University of Sofia.