Maximos III Michael Mazloum, (born in November 1779 in Aleppo, present Syria – died in August 1855) was patriarch of the Melkite Greek Catholic Church from 1833 until 1855.

[2] His appointment as bishop of Aleppo was contested by the Propaganda Fide (and by Ignatius IV Sarrouf, Archbishop of Beirut and future patriarch).

In May 1811, a compromise was reached: Mazloum was offered the position of superior of the first Melkite seminary established in Ain Traz.

[3] Mazloum remained in Europe until 1831, living mainly in Rome, and endearing himself to the Roman Curia because of his untiring efforts in aid of the Melkites.

[3] He spent time translating spiritual and theological books, and in 1821 founded the Greek Catholic parish of St. Nicholas in Marseille, France, for Melkites.