The John Hunter Hospital (sometimes known as the JHH or more colloquially The John Hunter) is the principal referral centre and a community hospital for Newcastle, Lake Macquarie and Northern New South Wales, Australia. It is the main teaching hospital of the University of Newcastle. The hospital contains the only trauma centre in New South Wales outside the Sydney Metropolitan Area, and has the busiest emergency department in the state. John Hunter is the busiest trauma hospital in the state, and the second busiest in the country behind The Alfred Hospital in Victoria.