Authorship in clinical research carries significant academic, financial, and social implications. However, determining rightful authorship often introduces ethical and professional dilemmas, particularly in large, multidisciplinary studies, such as those common in oncology. This article explores the ethical complexities surrounding authorship in clinical research from the viewpoint of a medical oncologist. It addresses issues, such as academic jealousy, the inclusion of industry-affiliated researchers, honorary authorship, and the role of patient recruitment in authorship qualification. By examining current guidelines, ethical considerations, and practical cases, this paper aims to offer insights into fostering fair and transparent authorship practices in the field of clinical oncology.