The European Oncology Nursing Society Nightingale Challenge was a professional development program delivered via seven one-hour webinars focusing on leadership, career development, and managing burnout. A total of 151 participants attended one or more webinars, and 51 participants provided feedback, with 84% evaluating the program positively, 77% saying it met their expectations for learning, 65% considering the webinars relevant, and 59% stating the knowledge is applicable to personal development. Some participants experienced difficulties with the speed (8%) and length (9%) of presentations. However, online learning may enhance oncology nurses’ access to personal and professional development.