The Ikara–Flinders Ranges National Park, formerly Flinders Ranges National Park, is a national park situated approximately 430 km (270 mi) north of Adelaide, Australia. It lies northeast of the small town of Hawker, in the northern central part of South Australia's largest mountain range, the Flinders Ranges, and covers an area of 95,000 ha (370 sq mi) between Hawker and Blinman. It is known for the land formation known as Wilpena Pound, while other well-known features include the Heysen Range and the Brachina and Bunyeroo gorges. The Heysen Trail and Mawson Trail pass through the park.
The whole park is part of the Flinders Ranges geological successions, where abundant and diverse arrays of fossils show how animal life began on Earth over a period of 350 million years. Within the park, on Enorama Creek, there is a Global Boundary Stratotype Section and Point (GSSP, or "Golden Spike"), ratified by the International Commission on Stratigraphy in 2004. The GSSP defines the lower boundary of the Ediacaran period, then recently recognised for the first time. As well as containing a large number of heritage-listed sites, Ikara–Flinders Ranges National Park is one of a group of seven geographically separate areas that were submitted to the UNESCO World Heritage Centre for consideration as a World Heritage Site in 2021, and as of August 2025 remain on the tentative list.