Sibiloi National Park lies on the northeastern shore of Lake Turkana in northern Kenya. Established in 1973 by the government of Kenya for the protection of wildlife and paleontologist sites there, it covers 1,570 km (610 sq mi) and is internationally known for its fossils. It was listed as a UNESCO World Heritage Site in 1997 as a part of Lake Turkana National Parks.

Sibiloi National Park is located on the wild and rugged shores of Lake Turkana – the cradle of mankind - Sibiloi is home to important archaeological sites including Koobi Fora where the fossil remains have contributed more to the understanding of human evolution than any other site in the continent. The area is characterized by semi-desert habitat and open plains flanked by volcanic formations including Mount Sibiloi, where the remains of a petrified forest can be seen.

The park was named for Mount Sibiloi in view at Alia Bay on the south perimeter. There also is located the park headquarters of the Kenya Wildlife Service, the administering authority; camping and short-stay facilities for visitors; and the Koobi Fora Museum. Koobi Fora Spit with the facilities of the Koobi Fora research Center are to the north, but are accessible through guided tours.

The most famous remains from the park are the Australopithecus and early Homo fossils. These have been moved to Nairobi, but fossil non-humanoids are on display in the museum.

• Koobi Fora
• Lake Turkana

• "Sibiloi National Park". Kenya Wildlife Service. Retrieved 2010-10-11.
• Media related to Sibiloi National Park at Wikimedia Commons