Grand Ayatollah Mohammad Taqi Bahjat Foumani (محمدتقی بهجت فومنی) (24 August 1916 – 17 May 2009) was an Iranian Twelver Shia Marja'. He was born in Fouman, Gilan province in the north of Iran. He started his primary education from Fouman. He then travelled to Karbala and Najaf at an early age to continue his education. In Najaf, he was a student of Abu'l-Hasan al-Isfahani, Shaykh Muhammad Kazim Shirazi, Mirza Hussein Naini, Agha Zia al-Din Araghi, and Shaykh Muhammad Hussain al-Gharawi. In addition, Ali Tabataba'i (known as Ayatollah Qazi) was his teacher in spirituality and gnosticism. He returned to Iran in 1945 and taught jurisprudence and theology at the Qom Seminary.