Seyed Mahmood Hosseini (born December 1, 1954) is an Iranian politician and former governor of provinces of Sistan va Balouchestan and Isfahan, Iran.

[3] During the protests about the 2009 Iran presidential election, Seyed Mahmood Hosseini signed an open letter to the top Iranian Shia clerics prepared by Mohammad Khatami, Mir Hossein Mousavi, Mehdi Karoubi and some of the renowned reformist figures, by pointing out the arrests after the election, as being the reference and support of the great nation of Iran, to remind the government about the damaging outcomes of their unlawful acts.

[4] Hosseini was appointed to Isfahan province governor on August 6, 2002, and held the position until October 8, 2005.

[5] One of the irritating issues during Hosseini's time as provincial governor was the unrest that started on August 16, 2003, after a decision by the Isfahan Governor General's Office to incorporate Vardasht district of Semirom into the municipality of Dehaqan provoked the ire of the people of Vardasht.

[6][7] Later Hosseini, in an interview with Shargh newspaper, denied any involvement in ordering to confront police with people and said the number of killed was four.