Chinchaga Wildland Provincial Park is a wildland provincial park in northwestern Alberta, Canada. The park is a 802.7 square kilometres (310 sq mi) environmentally protected tract of land within the 5,000 km² (1,900 sq mi) of the greater Chinchaga wilderness area. It is a disjunct outlier of the Foothills Natural Region of Alberta. It was established on 15 December 1999. The greater Chinchaga area was identified in 1995 as an Environmentally Significant Area. It was designated by the Alberta Government as a protected area under the "Special Places" program. The park is administered by the Upper Peace Land Use Framework.

The park is in Clear Hills County in northwestern Alberta about 100 kilometres (62 mi) west of Manning and approximately 12 kilometres (7.5 mi) east of the British Columbia border. The upper course of the Chinchaga River forms the Park's northern border while the southern border is the slopes of Halverson Ridge. Elevations in the Park range from less than 700 metres (2,300 ft) at the Chinchaga River in the north to over 1,050 metres (3,440 ft) at the top of Halverson Ridge. The park is extremely isolated and remote and without formal roads. The closest road is the Chinchaga Forestry Road, a high-grade gravel road running west from the Mackenzie Highway and crossing into British Columbia north of the Chinchaga River. Significant previous oil and gas exploration activity has left seismic cut lines throughout the park allowing access via off-road vehicles.

The Chinchaga area was mainly used by small populations of First Nations and Métis for hunting.

In the spring of 1950 the watershed of the Chinchaga River experienced drought conditions that extended over boreal regions of northern Canada.

On 1 June 1950 human activity caused a forest fire in the Chinchaga area, one of the largest if not the largest in modern North American history. The ignition point was north of Fort St. John, British Columbia. At the time of the fire Imperial Oil surveying crew were on site. Other sources theorize that slash burning from agricultural clearing could have been the initial spark. The fire burned north-eastward nearly to Keg River, Alberta and continued to burn throughout the summer and early fall until the end of October. It destroyed 10,000 square kilometres (3,900 sq mi) of the Chinchaga area. Size estimates have varied due to the imprecise measurement techniques of the time period. Estimates at the time ranged from 1 to 1.4 million hectares (2.5×10^⁶ to 3.5×10^⁶ acres). In 2008 and 2009 the final size was considerably larger than previous estimates, placing the total burned area at 1.7 million hectares (4.2×10^⁶ acres). While most likely not the largest fire in the history of the North American boreal forest, it produced the largest burned area of any recorded fire on the continent.

In the 1997 report commissioned by the Alberta Environmental Protection the Chinchaga Diversity Area and the Chinchaga River were designated as an Environmentally Significant Areas (ESAs).

In June 1999, the Senate Committee on Agriculture and Forestry's Subcommittee on the Boreal Forest published their report Competing Realities: The Boreal Forest at Risk which contained 35 recommendations intended to ensure that Canada adopt "a natural forest landscape-based approach to managing a boreal forest that is coming increasingly under siege".

Under the 2000 "Special Places" program. the natural state of the area is intended to be protected, however, other uses are permitted under provincial law. Concerns have been raised about oil and gas development in parts of this wilderness area.