| V Asian Games | |
| Size: | 170 |
| Motto: | Ever Onward |
| Host City: | Bangkok, Thailand |
| Nations: | 18 |
| Athletes: | 1,945 |
| Events: | 142 in 16 sports |
| Opening: | 9 December |
| Closing: | 20 December |
| Opened By: | Bhumibol Adulyadej |
| Stadium: | National Stadium |
| Previous: | Jakarta 1962 |
The 1966 Asian Games, also known as the V Asiad or Bangkok 1966 (Thai: กรุงเทพมหานคร 1966), were a continental multi-sport event that was held from 9 to 20 December 1966, in Bangkok, Thailand. A total of 142 events in 16 sports were contested by athletes during the games. Taiwan and Israel returned to the Asian Games, reversing the decision taken by Indonesia in the previous Asiad to debar the two countries. A total number of 2,500 athletes and officials from 18 countries, were involved in this Asiad.
The 5th Asiad was the first one where women's volleyball was played.
| IOC Letter Code | Country | Athletes |
|---|---|---|
| THA | 307 | |
| ROC | 306 | |
| JPN | 296 | |
| KOR | 268 | |
| IND | 259 | |
| INA | 257 | |
| IRN | 254 | |
| PHI | 173 | |
| MAL | 150 | |
| VNM | 141 | |
| SIN | 103 | |
| ISR | 90 | |
| BIR | 70 | |
| NEP | 61 | |
| CEY | 43 | |
| PAK | 42 | |
| AFG | 34 | |
| HKG | 21 | |
See main article: article and 1966 Asian Games medal table. Japan led the medal table for the fifth consecutive time, and they gained a new record for the most gold medals in a single Asian Games since 1962 in Jakarta. The top ten ranked NOCs at these Games are listed below. The host nation, Thailand, is highlighted.