Mount Trusmadi or Trus Madi is a mountain located at the Interior Division of Sabah, Malaysia. It is considered as the second highest mountain in both Sabah and Malaysia at 2,642 metres (8,668 ft), after Mount Kinabalu with Trusmadi offering a tougher climbing challenge than the latter. It is located within Crocker Range National Park with an area of 184,527 hectares in total.