Miss Universe Thailand 2024, the 25th edition of the pageant, was held on 14 July 2024 at MCC Hall, The Mall Lifestore Bangkapi in Bangkok, Thailand. Suchata Chuangsri of Bangkok was crowned by outgoing titleholder Anntonia Porsild. Chuangsri later represented Thailand at Miss Universe 2024 in Mexico and finished as third runner-up. After the event, Karnruethai Tassabut of Ubon Ratchathani was appointed Miss Cosmo Thailand 2024 and became runner-up at Miss Cosmo 2024. Contestants from thirty-nine provinces and Bangkok competed.