Tsugphud Namgyal (Sikkimese: གཙུག་ཕུད་རྣམ་རྒྱལ་; Wylie: gtsug phud rnam rgyal) (1785–1863) was king of Sikkim from 1793 to 1863.

Nepal overran most of the region, sparking the Gurkha War in 1814 with the British East India Company.

In 1835, Tsugphud Namgyal ceded Darjeeling to the East India Company for an annual fee, but this relationship was broken off after he seized botanist Joseph Hooker and Darjeeling Superintendent Archibald Campbell during their expedition to Sikkim.

This led to two British military expeditions in 1850 and 1861, resulting in the annexation of Sikkim by 1861.

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