Kawartha Highlands Provincial Park (officially called Kawartha Highlands Signature Site) is a 375-square-kilometre (145 sq mi) area of preserved wilderness and recreational areas in south-central Ontario, Canada. It is located to the north and east of the main belt of the Kawartha lakes primarily in the township of North Kawartha. It is the largest single area of preserved land in the southern part of the province (excluding Algonquin Park, parts of which are in northern and southern Ontario).
The park was expanded from its original size of 18.6 square kilometres (7.2 sq mi) to its current size in June 2003. It was previously a mostly-wilderness tract enclosing Bottle Lake and Sucker Lake, and accessible primarily by canoe, many by portage routes only. It now encloses many more small lakes as well as all of Anstruther Lake, and has many cottages and access roads.
As of May 2011 the park officially became operational and ministry permits for camping and parking are now required. Campsites are designated and provided with picnic tables, fire rings and thunder boxes Official Ontario Parks' maps indicate the park boundaries and exclude small tracts of land which contain pre-existing cottages. Additionally, some cottages on Serpentine and Copper Lakes remain without owning land remain and continue to use motor boats.