| Native Name: | 咸鏡南道 |
| Conventional Long Name: | Kankyōnan-dō |
| Subdivision: | Former province |
| Nation: | Korea, Empire of Japan |
| Capital: | Kankō |
| Today: | North Korea |
| Event End: | Relinquished |
| Date End: | 1945 |
| P1: | South Hamgyong Province |
| Flag P1: | Flag of Korea (1893).svg |
| S1: | Soviet Civil Administration |
| Flag S1: | Flag of the USSR (1936-1955).svg |
| Stat Year1: | 1936 |
, alternatively Kankyōnan Province or South Kankyō Province, was a province of Korea under Japanese rule. Its capital was Kankō (Hamhung). The province consisted of modern-day South Hamgyong Province, North Korea.
Number of people by nationality according to the 1936 census: