The European Oncology Nursing Society is a pan-European organisation dedicated to the support and development of cancer nurses across Europe and beyond. EONS consists of individual members and national societies, providing leadership in all areas of cancer nursing with a core focus on communications, advocacy, research and education. Our mission is to ensure that all people affected by cancer benefit from the care of highly educated, well-informed and competent cancer nurses. Our vision is that cancer nursing will be recognised by the cancer community, national and European-level policy makers, as a profession with specialised training and qualifications available across the continent. Working conditions for cancer nurses will be optimal, providing a commensurate financial income as well as protecting and promoting individual well-being. We anticipate that this will produce a relatable improvement in the health and clinical outcomes for people affected by cancer. Finally, we envisage that all our members will become confident and empowered cancer nurses operating as leaders in research, practice and education within multi-professional teams.