This paper introduces the special issue of Kinesiology Review addressing the legacy of Catherine D. Ennis. The introduction first provides a brief chronology of her life and discusses her career, focusing on her many professional activities and honors. It then provides a short review of her early scholarship as a basis for understanding how her scholarly career began. This is followed by an overview of this issue, which reviews the various phases of Ennis’s career with papers by scholars who have helped produce and use her research and ends with an epilogue of personal reflections by Ennis’s colleagues and friends.