The Baloch Students Organization (BSO; ) is a student organisation that campaigns for the students of Pakistan's Balochistan Province. It was founded as a student movement on 26 November 1967 in Karachi and remains the largest ethnic Baloch student body in the country. It got divided due to ideological differences. BSO Pajjar and BSO Mengal are affiliated with the parliamentary framework of Pakistan. Dr Allah Nazar, founder of pro independence wing, in 2002 while he was studying in college, created a breakaway faction — BSO–Azad — that advocated struggle for an independent Balochistan based on pre-colonial Baloch country. The Pakistani government banned the BSO Azad on 15 March 2013, as a terrorist organisation.