Konstantin Velichkov Specialised Secondary School of Mathematics (Bulgarian: Профилирана математическа гимназия „Константин Величков“) is a public secondary school in Pazardzhik, Bulgaria.

It is shown by the overall results from the National External Assessment as academically prepared.

Since 2019, the school is affiliated with different Erasmus+ projects, like flipped classroom, gamification, critical and creative thinking and ecology, with students in the 9th–11th grades being able to participate.

[4] Before the fall of communism in Bulgaria, classes focused on advanced study of mathematics and physics until the late 1990s when informatics, computer graphics and foreign languages became the focal point of teaching.

Since the 2000s, there has been a total of five core subjects for admission, them being mathematics, informatics, programming, information technology, biology, chemistry and English.