Trịnh Tráng (chữ Hán: 鄭梉, 6 August 1577 – 28 May 1657), posthumous name: Nghị Vương (誼王), temple name: Văn Tổ (文祖) was the second lord of Trịnh ruling Dang Ngoai (known to the Europeans as Tokin) in northern Vietnam from 1623 to 1657.

He took power after a brief succession struggle at the time of Trịnh Tùng's death.

This was the frontier of Vietnam and, as these provinces were newly conquered from the Champa, there was new land to farm and plenty of work for ambitious men.

In 1648 a major offensive came to grief as the Royal (Trịnh) army was defeated at the battle of Truong Duc.

In the following year, Trịnh Tráng died as Nguyen forces made attacks into Nghệ An Province.

Although he controlled a large, well-organized state, with a powerful military and advanced European cannons, Trịnh Tráng was completely unsuccessful in his attempts to conquer the smaller and weaker Nguyen territory.

During his rule, the royal army captured all but Cao Bằng Province from the weakened Mac rulers.