Grand Ayatollah Sheikh Basheer Hussain Najafi is a Pakistani Twelver Shia Marja' and one of the Four Grand Ayatollahs of Najaf, Iraq. He was born in Jalandhar, a city in then-British India. He resides in Najaf, Iraq now.

Twelver Shīʿism, also known as Imāmiyya, is the largest branch of Shīʿa Islam, comprising about 85 percent of all Shīʿa Muslims. The term Twelver refers to its adherents' belief in twelve divinely ordained leaders, known as the Twelve Imams, and their belief that the last Imam, Imam al-Mahdi, lives in Occultation and will reappear as the promised Mahdi.