The Six Provinces of Southern Vietnam (Vietnamese: Nam Kỳ Lục tỉnh, 南圻六省 or just Lục tỉnh, 六省) is a historical name for the region of Southern Vietnam, which is referred to in French as Basse-Cochinchine (Lower Cochinchina, or Hạ Đàng Trong). The region was politically defined and established after the inauguration of the Nguyễn dynasty in 1802, and called by this name from 1832, when Emperor Minh Mạng introduced administrative reforms.
The six provinces into which Emperor Minh Mạng divided Southern Vietnam in 1832 are: