Phetchaburi MRT station (Thai: สถานีเพชรบุรี, pronounced [sā.tʰǎː.nīː pʰét.t͡ɕʰā.bū.rīː]; code BL21) is a Bangkok MRT station on the Blue Line.

It is located under the junction of Asok and New Phetchaburi Road.

Commuters can transfer to the Airport Rail Link at Makkasan Station, and the SRT Eastern Line at Asok Halt, located at ground level.

The station uses symbol of a water wave referring to Khlong Saen Saeb.

[1] It is an underground station, 23 metres (75 ft) wide and 200 metres (660 ft) in length, with a depth of 20 metres (66 ft), and uses island platform There is a MetroMall in the station.