Bulgarian National Association of Oncology (BNAO) is the leading organized forum in Bulgaria for introducing and using modern medial standards in oncology.

BNAO promotes advanced methods in clinical and experimental oncology, especially concerning brain tumour prevention. Members of BNAO are almost all leading Bulgarian oncologists, or represent specialist oncological hospitals who, together, continue to forge national and international contacts in order to enhance their regional patient self-education programmes.

In 2006, BNOA became associate UICC member.