Thailand competed at the 1968 Summer Olympics in Mexico City, Mexico. 41 competitors, all men, took part in 18 events in 6 sports.
Boxing
Men's Flyweight
Prapan Duangchaoom
Men's Bantamweight
Cherdchai Udompaichitkul
Men's Light Welterweight
Niyom Prasertsom
Cycling
Seven cyclists represented Thailand in 1968.
Individual road race
Somchai Chantarasamrit
Suriyong Hemint
Somkuan Seehapant
Chainarong Sophonpong
Sprint
Pakanit Boriharnvanakhet
Kriengsak Varavudhi
1000m time trial
Pakanit Boriharnvanakhet
Individual pursuit
Pakanit Boriharnvanakhet
Team pursuit
Pakanit Boriharnvanakhet
Somchai Chantarasamrit
Boontom Prasongquamdee
Chainarong Sophonpong
Football
Sailing
Shooting
Eleven shooters, all men, represented Thailand in 1968.