Titus I Mar Thoma Metropolitan (Mar Thoma XV) (20 February 1843 – 20 October 1909) was known as Thithoos Mar Thoma Metropolitan (Thithoos is Aramaic and Malayalam) was the second Mar Thoma Metropolitan (1893–1909) after the Malankara Church split as the Orthodox and reformist factions. After the split in Malankara Syrian Church Thithoos Mar Thoma was the Metropolitan of the Reformed Fraction, which later chose the name Marthoma Syrian Church of Malabar, now popularly known as the Mar Thoma Church. This church remained completely independent.