Crocker Range (Malay: Banjaran Crocker) is a mountain range on the island of Borneo. Politically, it lies within the boundary of the Malaysian state of Sabah, located in the northern half of Borneo. It is named after William Maunder Crocker. The mountain range separates the east coast and west coast of Sabah. At an average height of 1,800 metres (5,900 ft), it is the highest mountain range in Sabah. Mount Kinabalu, one of the highest mountains in Southeast Asia, is part of this range. Part of the range has been gazetted for protection as Crocker Range Park since 1984. The area surrounding Mount Kinabalu has been a state park since 1964 and was the country's first World Heritage Site.
In 2014 it was recognised as a UNESCO Biosphere Reserve, becoming the second Malaysian site thus designated, after Chini Lake (in Peninsular Malaysia).