The Limestone Tombs of Kamhantik refer to the excavated remains of a thousand-year-old barangay (a term used to connote a polity during the classical era) found in the jungles of Mount Maclayao in Sitio Kamhantik within the Buenavista Protected Landscape of Mulanay, Quezon, Philippines.

It is composed of fifteen limestone coffins that can be dated back from the period of 10th to 14th century based on one of National Museum's top archaeologist "a complex archaeological site with both habitation and burial remains from the period of approximately 10th to the 14th century ... the first of its kind in the Philippines having carved limestone tombs.

[2] The archaeological site is part of 280 hectares (692 acres) of forest land that was declared a government-protected area in 1998 to keep away treasure hunters and slash-and-burn farmers.

Treasure hunters looking for gold exposed some of the limestone tombs years ago, but it was only in 2011 that Manila-based archaeologists started to unearth the graves and artifacts and realize the significance of the find.

However, the lids, skeletons, and other death goods that were supposed to be within the tombs have already been taken by treasure hunters before scientists managed to fully study the site.