Phaya Thai (also Phayathai, Phya Thai or Phyathai, {{lang-th|พญาไท}}) 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

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