Geography
- Location: Southeastern Asia, bordering the Andaman Sea and the Gulf of Thailand, southeast of Burma
- Geographic coordinates: 15 00 N, 100 00 E
- Map references: Southeast Asia
- Area: total: 514,000 sq km
- water: 2,230 sq km
- land: 511,770 sq km
- Area - comparative: slightly more than twice the size of Wyoming
- Land boundaries: total: 4,863 km
- border countries: Burma 1,800 km, Cambodia 803 km, Laos 1,754 km, Malaysia 506 km
- Coastline: 3,219 km
- Climate: tropical; rainy, warm, cloudy southwest monsoon (mid-May to September); dry, cool northeast monsoon (November to mid-March); southern isthmus always hot and humid
- Terrain: central plain; Khorat Plateau in the east; mountains elsewhere
- lowest point: Gulf of Thailand 0 m
- highest point: Doi Inthanon 2,576 m
- Natural resources: tin, rubber, natural gas, tungsten, tantalum, timber, lead, fish, gypsum, lignite, fluorite, arable land
- Land use: arable land: 32.88%, permanent crops: 7%, other: 60.12% (1998 est.)