OBJECTIVE: The aim of this study is to determine the knowledge, attitude, behaviour and practices regarding HIV/AIDS among the fishermen community in the coastal areas of Balochistan. DESIGN: A cross-sectional survey. PLACE AND DURATION OF STUDY: This study was conducted between September-October 2000 at Gidani, a coastal area of Balochistan. PATIENTS AND METHODS: About 1000 fishermen were interviewed to assess the knowledge, attitude, behaviour and practices regarding HIV/AIDS. It was a community based survey involving the key informants, interviews and focused group discussions. RESULTS:There was little awareness regarding causes and prevention of HIV/AIDS in the community. While healthcare providers believe that the prevalence of HIV/AIDS is high, the community did not consider themselves at risk. Adolescents with any sexual health problems visit hakims and quacks. The community was aware of the etiology and some of the risk factors associated with AIDS, most probably due to the recent public health campaigns against the disease. CONCLUSION: Considering the suspected high prevalence of HIV/AIDS and the relative lack of knowledge, it is imperative that a public health intervention program be initiated in these areas. This must include educating not only the community but also the health workers. The Government's initiative to train community workers in reproductive health is a step in the right direction.