Grand Ayatollah Mohammad-Taqi Bahjat Foumani (Persian: محمدتقی بهجت فومنی) (24 August 1916 – 17 May 2009) was an Iranian Twelver Shia Marja'.

Ayatullah Mohammad-Taqi was born on 24 August 1916 in the Fouman, Gilan province in the north of Iran.

[3][1] He had many students including: Morteza Motahhari, Abdollah Javadi-Amoli, Mohammad Mohammadi Gilani, Mohammad Yazdi, Ahmad Azari Qomi, Mohammad-Taqi Mesbah-Yazdi, Mahdi Hosseini Rohani, Azizollah Khoshvaght, and Zaynolabideen Ghorbani.

He composed poems of praise and eulogy for the Ahl al-Bayt, especially Imam Al-Husayn, which he had originally written in Persian.

He left behind a large number of compilations, including: Kitab-e Salaat, Jama'e al-Masa’el,[2] Zakhirah al-Ebaad Leyawm al-Maa`d, Tuzih al-Masaa'il, and Manaasek-e Hajj.