Ayatollah Seyyed Mohammad Ziaabadi (1928 - 8 February 2021) (Persian: سید محمد ضیاءآبادی) was an Iranian Mujtahid that was based in the Tehran Islamic Seminary.

[1] After spending 12 years studying in Qom Seminary, it was in 1961 after the death of Hossein Borujerdi in which he migrated to Tehran.

This prompted Ayatollah Hossein Borujerdi to influence scholars migrating to big cities in Iran and establishing Islamic Seminaries there.

He spent the rest of his life teaching and studying alongside Ahmad Mojtahedi Tehrani, in the Ayatollah Mojtahed Theological School.

[4] It was first speculated that Ziaabadi died of Coronavirus during the COVID-19 pandemic in Iran, however, it was actually due to coronary heart disease and his old age that led to his death.