| Represented: | Phitsanulok |
| Date: | 23 March 2002 |
| Venue: | Sofitel Centara Grand Bangkok, Bangkok, Thailand |
| Presenters: | Sanya Kunakorn, Apisamai Srirangsan, Sasikarn Aphichartworasilp |
| Entrants: | 44 |
| Placements: | 12 |
| Broadcaster: | BBTV Channel 7 |
| Winner: | Janjira Janchome |
| Photogenic: | Lalita Apaiwong Bangkok |
| Congeniality: | Fapratarn Rattanathada Bangkok |
| Before: | 2001 |
| Next: | 2003 |
Miss Thailand Universe 2002 was the third Miss Thailand Universe pageant, held at Sofitel Centara Grand Bangkok in Bangkok on 23 March 2002. The 44 contestants arrived in Nakhon Pathom a week prior to participate in activities and returned to Bangkok to compete in the final round.[1]
In the final round, broadcast live on BBTV Channel 7, Janjira Janchome, was crowned Miss Thailand Universe 2002 by Varinthorn Phadoongvithee, Miss Thailand Universe 2001.[2]
Janjira Janchome represented Thailand in Miss Universe 2002 pageant in San Juan, Puerto Rico.