The National Centre in HIV Social Research (NCHSR) is internationally recognised for its contribution to the Australian response to HIV and hepatitis C. While the core of its work has been in social aspects of HIV, particularly in regard to sexual practice, in recent years the NCHSR research program has expanded to include social research related to hepatitis C, injecting and illicit drug use, sexual health, Aboriginal health and the Asia-Pacific region.

NCHSR was established in 1990 with funding from the Australian Government Department of Health and Ageing. It is located within the Faculty of Arts and Social Sciences at The University of New South Wales, Sydney, Australia. NCHSR offers a postgraduate research program in Health, Sexuality and Culture.