Simlipal National Park is a national park and a tiger reserve in the Mayurbhanj district in the Indian state of Odisha. It is part of the Similipal-Kuldiha-Hadgarh Elephant Reserve popularly known as Mayurbhanj Elephant Reserve, which includes three protected areas — Similipal Tiger Reserve (2750.00 km2), Hadgarh Wildlife Sanctuary (191.06 km2) and Kuldiha Wildlife Sanctuary (272.75 km2)). Simlipal National Park derives its name from the abundance of semul (red silk cotton trees) that bloom here. It was the second largest national park in India.
The park has a protected area of 845.70 square kilometres (326.53 sq mi) and has some beautiful waterfalls like Joranda and Barehipani. Simlipal is home to 99 royal Bengal tigers and 432 wild elephants. Besides Simlipal is famous for gaurs (Indian bison), chausingha, as well as an orchidarium.
One can enter Similipal through Pithabata (22 kilometres (14 mi) from Baripada) and 98 km via Jashipur. Entry permits can be obtained from the Range Officer, Pithabata check gate upon paying prescribed fees. Day visitors can enter between 6 AM and 12 noon and visitors with reservation between 6 AM and 9 AM. Similipal National Park is open from 1 November to 15 June.
This reserve is part of the UNESCO World Network of Biosphere Reserves since 2009.