Phetchaburi (เพชรบุรี, pronounced [pʰét.tɕʰā.bū.rīː]) utawi Phet Buri (pronounced [pʰét bū.rīː]) inggih punika silih tunggil saking sisi kauh utawi tengah propinsi (changwat) saking Thailand. Propinsi sané nampek inggih punika (saking kalér arah jaum jam) Ratchaburi, Samut Songkhram, lan Prachuap Khiri Khan. Ring sisi kauhnyané mawates sareng Wawengkon Tanintharyi saking Myanmar. Phetchaburi pinaka genah Taman Nasional Kaeng Krachan.[1]