The University of Newcastle (UON), informally known as Newcastle University, is an Australian public university established in 1965. It has a primary campus in Callaghan, a suburb of Newcastle, New South Wales. The university also operates campuses in Ourimbah, Port Macquarie, Singapore, Newcastle CBD and Sydney CBD.

Historically, the University of Newcastle Medical School has implemented the problem-based learning system for its undergraduate Bachelor of Medicine program – a system later mandated for use by the Australian Medical Council throughout Australia. It pioneered use of the Undergraduate Medicine and Health Sciences Admission Test (UMAT) in the early 1990s.

The earliest origins of the present-day University of Newcastle can be traced to the Newcastle Teachers College (established 1949) and Newcastle University College (NUC, established 1951). NUC was created as an offshoot of the New South Wales University of Technology (now known as the University of New South Wales) and was co-located with the Newcastle Technical College at Tighes Hill. At the time of its establishment, NUC had just five full-time students and study was restricted to engineering, mathematics and science.

In 1998, the university established a partnership with the Institute Wira, a Malaysian private business school. In 2002, Ian Firms, a lecturer, failed a large number of student papers from Wira for academic dishonesty, but his actions were reversed by the Newcastle administration and he was discharged. He then appealed to the New South Wales Independent Commission against Corruption, which made a finding of corruption against Dr. Paul Ryder, a failure by Vice Chancellor Roger Holmes in the execution of his duty and recommended disciplining the Deputy Vice Chancellor, Professor Brian English.