| Name: | Vietnam (State of Vietnam; Republic of Vietnam; Republic of South Vietnam) |
| Local name (Vietnamese): | Viêt Nam (Viêt Nam Quôc; Viêt Nam Công hòa; Công hòa Mien nam Viêt Nam) |
| Bordering countries: | North Vietnam, Laos, Cambodia |
| Status: | sovereign state in 1954-1976 |
| Surface: | 170.8 ths. sq. km |
| Population (1970): | 20 230 ths. |
| Capital: | Saigon (Sài Gòn) |
| Official language: | Vietnamese |