Trương Minh Giảng (chữ Hán: 張明講,[1] 1792 – 1841) was a general and official of Vietnam during the Nguyễn dynasty.
His father, Trương-Minh Thành was the minister of ceremony (Lễ bộ Thượng thư) of Emperor Gia Long.
He ordered all Cambodian women to wear Vietnamese-style pyjamas instead of the khmer sampot (similar to the sarong), grow their hair long in Vietnamese style.
Seizing the opportunity, Siam invaded Cambodia in an attempt to install Ang Duong on the throne as their own puppet, triggering the Siamese–Vietnamese War (1841–45).
The new emperor Thiệu Trị suddenly decided to withdraw all Vietnamese troops from Cambodia following the advice of Tạ Quang Cự.