| นางสาวไทย | |
| Formation | 1934 |
|---|---|
| Type | Beauty pageant |
| Headquarters |  Bangkok |
| Location | |
Membership |
|
Official language | |
Organization | TPN Global Co. Ltd. |
Miss Thailand (Thai: นางสาวไทย; RTGS: Nang Sao Thai), is a beauty pageant held in Thailand for Thai women, first held on December 10, 1934, in Phra Nakhon District of Bangkok, under the name of Miss Siam (Thai: นางสาวสยาม; RTGS: Nang Sao Sayam). Since 2023, the winner of the pageant represents Thailand at Miss Global.
The winner of Miss Thailand used to represent the country at Miss Universe, while 1st Runner-up presented at Miss Asia Pacific International. However, Miss Thailand Organization lost these licenses to Miss Thailand Universe in 2000. The last Miss Thailand to represent her country at Miss Universe 1999 is Apisamai Srirangsan, Miss Thailand 1999.
In 2019, Sireethorn Leearamwat, Miss Thailand 2019, represented the country at Miss International 2019 and won the title for the first time for Thailand.
The reigning Miss Thailand 2024 is Panida Kernjinda from Chiang Mai.