As breast cancer is the most common form of cancer in women in the Republic of Croatia, the need for treatment is increasing. In addition to the necessary medical help, women with breast cancer need psychosocial support. What are the experiences of providing psychosocial support and proposals for the effective development of psychosocial support for women with breast cancer are questions that need to be analyzed precisely from the perspective of experts dealing with the above. These facts are the motive behind the graduation thesis entitled Psychosocial Support for Women with Breast Cancer: An Expert Perspective. Through qualitative research, this paper provides results that show what all the experiences of professionals in implementing psychosocial support for women with breast cancer within the association "Sve za nju". Furthermore, results were obtained showing how the experts describe the effective development of psychosocial support: financing psychosocial support, availability of psychosocial support, antistigma program and improvement of work methods and approaches. The results conclude that experts conducting psychosocial support for women with breast cancer have positive experiences and are satisfied with their work, but also see room for progress in providing psychosocial support.