Tanjidor is a traditional Betawi musical ensemble developed in Jakarta, Indonesia.

[1] This musical ensemble took the form of a modest orchestra and was developed in the 19th century, pioneered by Augustijn Michiels better known as Major Jantje in the Citrap or Citeureup area on the outskirt of Batavia.

[4] Tanjidor bandsmen usually perform in traditional Betawi weddings to deliver the groom or take part in parades as a group as a general rule, with the band led by a bandmaster or conductor.

They wear uniforms inspired by the traditional clothing of the Betawi of greater Jakarta and its suburban towns, with songkrok caps by the male bandsmen.

Their music is usually cheerful songs akin to military march music from the Dutch colonial era, which were usually played by military bandsmen of the Royal Netherlands Navy and the Royal Netherlands East Indies Army, and later on by bandsmen of the first generation bands of the Indonesian National Armed Forces.