Background: It is stated that the communication and disease experiences of paediatric patients, especially paediatric oncology patients, with healthcare professionals are completely different from those of adults. Objective: The aim of this study was to determine the definitions of a good physician and good nurse provided by elementary school-age oncology patients. Research design: In this qualitative research, data were collected through semi-structured individual interviews. The data were evaluated thorough thematic analysis. Participants and research context: Eighteen children hospitalised due to cancer (...) in paediatric oncology and haematology clinics of a university hospital in Turkey. Ethical considerations: Permission to conduct the study was obtained from the Institution’s Ethics Committee. The objectives of this study were explained to the participants and families, and written consent was obtained from them. Also, participants were assured that necessary measures would be taken to protect their anonymity and confidentiality. Findings: The definitions of children were based on five main themes: interpersonal relationships, virtues, professional responsibility, security and individual characteristics. Conclusion: Children conveyed important messages to health professionals. They emphasised that a good physician and good nurse should communicate well, not only with themselves but also with their family. In addition, children were sensitive about health professionals who played with them and actively participated in the treatment by informing them about the disease. Meeting the expectations of children can be possible by improving the communication skills of physicians and nurses and by adding games and activities to the treatment and care plan. (shrink)