Chakdor Namgyal (Sikkimese: ཕྱག་དོར་རྣམ་རྒྱལ་; Wylie: phyag dor rnam rgyal) was the third Chogyal (king) of Sikkim.

[2] During his exile in Tibet, Chakdor was under the protection of the sixth Dalai Lama, Gyalwa Tsangyang Gyatso, who granted him estates in Shigatse and Yamdoktso and focused himself on Buddhist religious studies.

Samduk Lingpa, a Tibetan general from Tsang successfully defused the situation before Tibet could invade Sikkim.

She hired a Tibetan doctor to tend to Chakdor at Ralang, who, after gaining his trust, convinced him of the necessity of bloodletting, and began to bleed the Chogyal to death.

Lama Jigme Pao, a good friend of Chakdor who had helped settle the conflict with Tibet, found the Chogyal in his last moments, lancet still in his arm, and after his death, secretly took the body back to Rabdentse.