European Perioperative Nursing Day, also known as International Perioperative Nursing Day, is observed worldwide every February 15. Established by the European Operating Room Nurses Association (EORNA), this day celebrates the vital role of perioperative nurses who provide care for surgical patients before, during, and after invasive procedures. The holiday has been recognized since the mid-2000s and aims to highlight the contributions of operating room nurses, including circulating nurses, instrument nurses, RN first assistants, and perianesthesia nurses. Activities such as conferences, seminars, workshops, and round table discussions are organized to facilitate the exchange of professional experiences among perioperative nurses. This observance underscores the importance of maintaining high standards of perioperative care and recognizes the collaborative efforts of nurses alongside surgeons and anesthesiologists in ensuring successful surgical outcomes.