Bijan Mortazavi (Persian: بیژن مرتضوی;[a] born November 16, 1957) is an Iranian virtuoso violinist, musician, composer, songwriter, arranger and singer.

He was trained in improvisation, orchestration, arrangement, quarter tone technique, and dastgah by various well-known violinists in Iran.

In a Nowruz 1991 interview with Alireza Amirghassemi on The Tapesh Show, Mortazavi claimed that as part of his tutelage, Namazian had him focus for the first three months only on music theory to learn the notes and scales and then apply them to the violin, as Mortazavi did not attend music school, and advised his parents to not let him touch the violin during that time.

He would later take lessons from Ali Tajvidi, Parviz Yahaghi, Habibollah Badiei, Jahangir Kamiyan, Hasan Shamaizadeh.

At the age of seven, he also started playing the piano, guitar, percussion, and folk string instruments such as oud, tar, and santur.

On November 25, 2009, Bijan received his Fellowship (PhD) from Southampton Solent University in Great Britain, in recognition of his work on the development of contemporary middle eastern music in an academic form in United Kingdom and other western countries.

Bijan has performed in other big venues around the world, among them the Shrine Auditorium in Los Angeles, the Gibson Amphitheater (aka Universal Amphitheater) in Universal City, California, the Kodak Theatre in Hollywood and Highland Center, the Royal Albert Hall, Equinox and Le Palace in London, the Ford Center, Performing Arts Center, Roy Thomson Hall in Toronto, Queen Elizabeth Auditorium in Vancouver, the Albert Hall in Copenhagen, the Nobel Concert Hall and Global Auditorium in Stockholm, and the Performing arts center and Civic Auditoriums in Australia's Sydney, Perth, Melbourne, Brisbane, Adelaide and Auckland in New Zealand.