Phaya Thai (also Phayathai, Phya Thai or Phyathai, ) may refer to:
Phaya Thai District, one of the 50 districts of Bangkok Phaya Thai Road, a major road in Bangkok Phaya Thai BTS Station, a station on the Sukhumvit of the BTS Skytrain Phaya Thai Airport Link Station, a station on the Suvarnabhumi Airport Link of the State Railway of Thailand Phaya Thai Railway Station, a train station of the State Railway of Thailand Phya Thai Palace, a former royal residence located on Ratchawithi Road Phyathai Hospitals Group, a network of private hospitals in Bangkok, consisting of: Phyathai 1 Hospital Phyathai 2 Hospital Phyathai 3 Hospital