Tan Tjoen Tiat

Tan Tjoen Tiat, 2nd Majoor der Chinezen (; 1816–1880) was a Chinese-Indonesian bureaucrat who served as the second Majoor der Chinezen, or Chinese headman, of Batavia, now Jakarta, capital of Indonesia. This was the most senior Chinese position in the colonial civil bureaucracy of the Dutch East Indies. As Majoor, Tan was also the Chairman of the Chinese Council of Batavia (Dutch: Chinese Raad; Indonesian: Kong Koan), the city's highest Chinese government body. His wife, Oey Tan Nio, is nonetheless recorded as the daughter of Kapitein Oey Eng Liok (appointed to his position in 1838), thus linking the future Majoor by marriage to the Cabang Atas aristocracy of colonial Indonesia. Their task was to determine whether a woman, as a widow or a mother, may act as a guardian for minors under Chinese law. All three answered in the negative, with von Faber assigning the responsibility of custodianship to the Boedelkamer, or Estate Chamber; and the two Chinese officers, to a respected male relative of the minors.

Tan served in office until 1879, when he asked for, and was granted by the colonial government, an honourable discharge from his position. Allowed nonetheless to retain his mayoralty on an honorary, titular basis, the former second Majoor died a year after his resignation in 1880, and was buried at his family mausoleum in Gaboes.

His son, Luitenant-titulair der Chinezen Tan Keng Soei, was married to a niece of Kapitein Ko Se Tjoan and Kapitein Ko Tjoen Kiat. His daughter, Tan Im Nio, was married to Luitenant Souw Siauw Keng, son of Luitenant Souw Tian Pie. Another daughter married Luitenant-titulair Oey Tiang Lam, son of Oey Ing Soan, Kapitein der Chinezen of Tegal in Central Java.