Patient Safety Day is observed in Ukraine on September 17, coinciding with World Patient Safety Day. It was officially established by President Volodymyr Zelensky in September 2019 to recognize the importance of patient safety in healthcare. The day highlights the prevention, reduction, reporting, and analysis of medical errors, which impact 1 in every 10 patients globally, as noted by the World Health Organization (WHO). The WHO emphasizes patient safety as a critical healthcare discipline and supports research and education in this area. The establishment of Patient Safety Day in Ukraine aligns with ongoing reforms in the country's healthcare system aimed at reducing medical errors. This observance serves to underscore the significance of quality medical care and the ethical principle of "first, do not harm."