Tenzin Wangchuk Khan (Mongolian: Ванжил хаан Vanjil Khaan, died 1697 or 1703) was the fourth khan of the Khoshut Khanate and protector-king ("Dharma king, Protector of the Faith") of Tibet.
[1] Towards the end of his father's life he had a serious disagreement with his younger brother Lhabzang Khan which the envoys of the Dalai Lama regime were not able to bridge.
After a brief reign Tenzin Wangchuk was poisoned by Lhabzang Khan who then took the throne.
[3] According to a new investigation of the documents, by Peter Schwieger, Tenzin Wangchuk did not actually accede to the throne due to his poor health.
Rather, the Sixth Dalai Lama proposed the younger brother Lhabzang as successor in 1703.