Sheets of Laos, 1966
| Issuer | Date | Desc | State | ||
| - |  |
Laos | 5/3/1966 | Inauguration Of WHO Headquarters, sheet of 3 types | |
| - |  |
Laos | 7/7/1966 | 20th Anniversary of UNESCO, sheet of 4 types | |
| - |  |
Laos | 9/7/1966 | International Letter Writing Week 1966, sheet of 4 types |