The Mathematics and Physics Department of the first Higher School in Bulgaria was founded in 1889, offering programs in physics, mathematics and chemistry. In 1894 the Higher School was renamed to Sofia University “St. Kliment Ohridski”.
The Physics and Mathematics program was introduced in 1899, spanning four years of education in mathematics, experimental and theoretical physics. It included seven courses and 72 students. This laid the foundations of higher education in natural and mathematical sciences in Bulgaria. Following the Higher Education Act in 1904, the Faculty of Physics and Mathematics was established, then including an applied and pedagogical profiles.
In 1907 Sofia University, including the Faculty of Physics and Mathematics, endured their first major challenge. Following jeering of then-Tsar Ferdinand by students, the university was closed down, and all faculty were fired. Several months later the University reopened but without any of its original staff, until the change of Minister of Education resulted in the complete rehabilitation of teaching personnel and researchers.
After the end of World War II, the Physics program of the Faculty underwent significant changes and expansion. To respond to the rapidly growing industrial demand for physicists, the Faculty of Physics and Mathematics significantly expanded its capacity for research and education, particularly from the 1960s onward. In 1963, the Faculty of Physics became a separate faculty of Sofia University, and relocated to its current campus in 1971. A year later, the Engineering Physics program was launched.