Tashi Namgyal Academy (a.k.a. T.N.A. or T.N. Academy) is a public school located in the Himalayan state of Sikkim in India.
Tashi Namgyal Academy was founded in 1926 by the late Sir Tashi Namgyal, KCSI, KCIE, the 11th consecrated Ruler of Sikkim. It is an autonomous English-medium, co-educational and Residential-cum-Day School.