Grand Ayatollah Yasubeddin Rastegar Jooybari (Persian: يعسوب الدين رستگار جويباري) (born 1940) is an Iranian Twelver Shi'a Marja'.

[1][2][3][4] He has studied in seminaries of Qom, Iran under Grand Ayatollah Mohammad Kazem Shariatmadari, Mohammad-Reza Golpaygani and Mirza Hashem Amoli.

During his arrest in late February 1996, he was held in incommunicado detention, reportedly mainly in Tawhid and Evin Prisons in Tehran until July 1996.

In August 1996, he was sentenced to three years imprisonment for having held a mourning ceremony for the late Grand Ayatollah Shariatmadari.

[9] Rastgari was again arrested on April 27, 2004 and sentenced by the Special Clerical Court to four years in prison for “insulting Islam” and “causing schism” through his critical book on Sunni-Shia relations, The Reality of Religious Unity.