Mirna may refer to:

Kornelije "Bata" Kovač (pronounced [kɔ̌rne̞ːlije̞ bǎːta kɔ̂v̞atʃ]; Serbian Cyrillic: Корнелије Ковач, Hungarian: Kovács Kornél; born 1 January 1942) is a famous Serbian composer.

Born in Niš during World War II in Nedić's Serbia to a Hungarian father and a Serbian mother, Kovač came from a prominent artistic family - his grandfather was a conductor, his father a music professor and a violinist, his mother a singer in the opera choir.

Kornelije Kovač received his early music education at his hometown's Subotica College Of Music, after which he attempted to enroll in the Belgrade Music Academy. He didn't pass the entrance exam so he entered the Academy Of Music Art in Sarajevo where he graduated from the Theory And Piano Department.

Along with his classical music education, he was devoting a great deal of his time to the pop and rock music.

His career as a professional musician started in 1961. Profoundly educated, he was able to exercise successfully in various fields of activities: as composer, pianist, keyboard player, producer and arranger. In 1961, he formed his first band, BKB, which became a prominent jazz trio at the time. In 1963 they entered The Yu Jazz Festival, that took place in Bled (Slovenia). After conducting the various orchestras in Bosnia, he finally joined Sarajevo's most popular pop band Indeksi. With them he had a 2-months long tour in Russia. In 1968, he moved to the Yugoslav capital, Belgrade, where he founded one of the most significant Yugoslav pop-rock bands ever, Korni Grupa. As a composer and a musician, he won many music contests that took place in former Yugoslavia. With Korni Grupa he entered following music festivals in Europe: