The reigning Miss Thailand 2024 is Panida Kernjinda from Chiang Mai.

The inaugural Miss Siam pageant took place on December 10, 1934, in Phra Nakhon District of Bangkok.

[citation needed] On hiatus during World War II, it resumed in 1948 as the Miss Thailand pageant.

The beauty pageant was broadcast on BBTV (channel 7) until 2000, then moved to ITV, which later was transformed into TITV (Thailand Independent Television) and TPBS (Thailand Public Broadcasting Service) until 2007.

In 2016 and 2020–present, Miss Thailand pageant was returned to broadcast on BBTV (channel 7).