Miss Universe Thailand 2018
Miss Universe Thailand 2018 was the 19th edition of the Miss Universe Thailand pageant. It was held on 30 June 2018 at the Royal Paragon Hall, Siam Paragon in Bangkok, and was hosted by Sanya Kunakorn and Elizabeth Sadler Leenanuchai. Maria Poonlertlarp, Miss Universe Thailand 2017 crowned her successor Sophida Kanchanarin at the end of the event. Kanchanarin represented Thailand at the Miss Universe 2018 pageant on 16 December 2018 in Bangkok and was placed as a Top 10 finalist.
Final results
§: Nicolene directly entered the Top 16 after winning Miss People's Choice.Special awards
Delegates
Forty contestants competed for the title of Miss Universe Thailand 2018.| Number | Name | Age | Height | Province | Placement | Special Award |
| 1 | Nicolene Pichapa Limsnukan | 19 | Top 10 | Miss People's Choice | ||
| 2 | Menisa Chumsaisakul | 22 | Top 16 | |||
| 3 | Papatsorn Jaruakkarapat | 20 | ||||
| 4 | Prinyanard Dansai | 19 | ||||
| 5 | Natharuetai Akkarakijwattanakul | 24 | Top 10 | Miss Best Skin | ||
| 6 | Khunanya Chomphulong | 25 | Maha Sarakham | |||
| 7 | Piraya Srimook | 25 | Kanchanaburi | |||
| 8 | Manatsanan Phuthanyabodin | 25 | ||||
| 9 | Aniphan Chalermburanawong | 25 | Lampang | Top 10 | ||
| 10 | Thitaree Kasorn | 22 | 1st Runner-Up | |||
| 11 | Valentina Giardullo | 24 | Top 5 | Boutique Lady | ||
| 12 | Palita Puttharassu | 25 | Khon Kaen | Top 5 | Miss Smile Best Swimsuit | |
| 13 | Penpimon Sasithammawong | 22 | Top 16 | |||
| 14 | Praveenar Singh | 22 | Chiang Mai | Top 5 | ||
| 15 | Vanaporn Makaduangkeo | 27 | Top 10 | |||
| 16 | Suttinee Wichianchoi | 21 | Chonburi | |||
| 17 | Supatra Kiatjarungphan | 24 | Yasothon | Top 10 | Khwanjai Chao Krabi | |
| 18 | Mueanfan Na Nan | 25 | Nan | |||
| 19 | Onnaree Wannapasert | 25 | Saraburi | |||
| 20 | Sophida Kanchanarin | 23 | WINNER | |||
| 21 | Kanokwan Kumthep | 24 | Nan | |||
| 22 | Ruechanok Meesang | 23 | Top 16 | |||
| 23 | Jenjira Seachen | 20 | Bueng Kan | |||
| 24 | Watusiri Jaiklang | 24 | Chiang Mai | Top 16 | Khwanjai Muan Chon | |
| 25 | Pichaya Suwansawek | 23 | Top 16 | |||
| 26 | Peerachada Khunrak | 23 | Songkhla | |||
| 27 | Sornsahwan Silahrom | 24 | Nakhon Si Thammarat | |||
| 28 | Charena Hengsathorn | 25 | ||||
| 29 | Urachaphat Dechabenjanon | 23 | Nonthaburi | Miss Beauty & Elegance | ||
| 30 | Phanthiya Phruksa | 23 | Nakhon Sawan | |||
| 31 | Pijitra Kongson | 24 | Nakhon Ratchasima | |||
| 32 | Rattanarat Srikong | 24 | ||||
| 33 | Unmanee Unmuang | 24 | Phuket | |||
| 34 | Lilikarn Phornnipatkul | 24 | Nakhon Si Thammarat | Top 16 | ||
| 35 | Natrapat Siranapatrasiri | 26 | Lopburi | |||
| 36 | Sarika Froemert Komklang | 22 | Chiang Mai | |||
| 37 | Patimaporn Keyanchom | 20 | Ubon Ratchathani | |||
| 38 | Absone Oriabel Mesnil | 21 | ||||
| 39 | Namphon Sirikul | 27 | ||||
| 40 | Ratchaneekorn Jirakunakorn | 24 | Ranong |