Khangchendzonga National Park is a protected area located in the Indian state of Sikkim. It was established as a national park in 1977 and was later declared a UNESCO World Heritage Site in 2016. The park covers an area of 849.5 square kilometers and is named after Mount Khangchendzonga, the third highest peak in the world.

The national park is home to a diverse range of flora and fauna, including several endangered species. It is known for its high altitude lakes, alpine meadows, glaciers, and snow-capped peaks. The park is also home to several species of mammals, such as snow leopards, Himalayan black bears, red pandas, and musk deer, as well as over 500 species of birds.

The park is also an important cultural site for the local communities. It is believed to be the home of the protective deity of Sikkim, and several holy lakes and caves are located within the park. The area is also home to several traditional villages and monasteries that have been inhabited for centuries.

Visitors to the park can enjoy several trekking routes, including the famous Khangchendzonga trek, which takes trekkers through some of the most scenic parts of the park. There are also several camping sites and guesthouses located within the park for those who wish to stay overnight.