泰国国际航空（泰语：การบินไทย；英语：Thai Airways International Public Company Limited，简称泰航；(SET: THAI) 是泰国的国营航空公司，提供来往泰国的旅客服务。此航空也是泰国最大的航空公司。泰航的收入来源包括客运、货运、邮件、代理其他航空公司在曼谷机场内之地勤业务、机上免税商品贩售及提供旅客饭店机场间交通运送服务等。

泰国国际航空公司飞行的航线以曼谷为中心点作放射状遍及全球与泰国境内各主要城市，包含泰国国内线、区域航线及洲际航线等。泰航为加速其营运成长并积极开拓其飞行版图，今日泰国国际航空之航线已遍及全世界34个国家、74个主要城市。

Thai Airways International Public Company Limited, trading as THAI (SET: THAI, Thai:บริษัท การบินไทย จำกัด (มหาชน)) is the flag carrier airline of Thailand. Formed in 1988, the airline has its corporate headquarters in Vibhavadi Rangsit Road, Chatuchak District, Bangkok, and primarily operates out of Suvarnabhumi Airport. THAI is a founding member of the Star Alliance. The airline is the largest shareholder of the low-cost carrier Nok Air with a 39 percent stake, and it launched a regional carrier under the name Thai Smile in the middle of 2012 using new Airbus A320 aircraft.