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Chak Phet Road (Thai: ถนนจักรเพชร, pronounced [tʰā.nǒn t͡ɕàk pʰét]; sometimes spelled Chakkraphet or Chakphet) is a road in Wang Burapha Phirom Subdistrict, Phra Nakhon District, Bangkok, with a total length of 1,120 m (3,674 ft).

Its name after a fort was called "Pom Chak Phet" that used to be located at southernmost of Rattanakosin Island at mouth of canal Khlong Rop Krung near present-day the foot of Memorial Bridge. It was one of 14 fortifications built to protect the capital from the early Rattanakosin period in the reign of King Phutthayotfa Chulalok (Rama I). Later, in the reign of King Chulalongkorn (Rama V), when the capital grew more. These fortifications were demolished.

Chak Phet Road began to be built on 28 September 1898, divided into two phases: the first phase, from Pom Chak Phet beside Wat Ratchaburana to Pak Khlong Talat, and the second phase from Pom Chak Phet to the intersection of Yaowarat, Maha Chai, Phiraphong Roads near Pom Maha Chai (present-day Wang Burapha Intersection) and Phahurat Road. When passing this point it continues as Maha Chai Road. Both phases are one-way traffic roads.

Although it is only a short road, it is considered an important trade route because it is located in the commercial district and runs through many important places, including King Rama I Memorial and Memorial Bridge, Pak Khlong Talat, Charoen Rat 31 Bridge, end of Ban Mo Road, Chao Mae Thapthim Shrine, Gurdwara Sri Guru Singh Sabha, Phahurat, Saphan Han, and Wang Burapha.^{[1] [2]}

13°44′38.14″N 100°30′08.38″E / 13.7439278°N 100.5023278°E / 13.7439278; 100.5023278