Introduction: People living with HIV/AIDS (PLWHA) have higher risk to acquire complications from oral manifestation and oral-sistemic opportunistic infection compared to healthy individuals. Data regarding knowledge, attitude, and behaviour on oral health is of great importance in effort to design a specific programme for PLWHA so as to ensure the well-being and quality of life of PLWHA.

Objective of this study is to obtain the description of the knowledge, attitude, and behaviour on oral health among PLWHA in Bali Peduli Foundation. Method: A non-experimental, descriptive observational study was performed on 75 PLWHA samples in Bali Peduli Foundation using questionnaire to evaluate the knowledge, attitude, and behaviour on oral health. Data obtained was then analysed in a descriptive manner and presented in cross-tabulation tables and narrations.

Result: It was found in this study that most of PLWHA in Bali Peduli Foundation has an excellent score of knowledge (64%), attitude (79%), and behaviour (52%) on oral health. Despite further analysis and interpretation of responses from the samples of the overall quantitative score were excellent, PLWHA in Bali Peduli Foundation still have several tendencies such as: a) inadequate awareness towards risk of diseases and actual health condition of themselves, b) lack of attention and priority towards oral health, and c) procrastinating treatment or check-up.

Conclusion: Regardless of the overall excellent result from the quantitative score, it is still necessary to enforce promotion and education to PLWHA regarding ill-well perception, low-risk behaviour, and the importance of prompt treatment to prevent further complications and bacteremia.