Background: The concept of do-not-resuscitate (DNR) orders began when medical and surgical interventions increased the possibility of resuscitation in dying patients. Healthcare providers should start to care more about the quality of life rather than quantity. The acceptance of signing DNR orders varies among physicians owing to different reasons and conceptions. Objective: The aim of this national survey was to evaluate the extent of physicians’ knowledge and attitude towards do-not-resuscitate (DNR) orders in different hospitals and specialties in Saudi Arabia. Methods: A cross-sectional study was conducted in Saudi Arabia and other Arab Gulf countries between March 2019 and May 2021. Results: A total of 409 physicians completed the questionnaire (53.3% male, 47% of the participants were less than 30 years of age). Most participants had their residency medical training in Saudi Arabia (73.6%, n=281); 33.5% were emergency medicine (EM) physicians. Among 409 patients, 92.7% (n=379 ) were familiar with the DNR (do-not-resuscitate) ter. Half of the participants had never discussed a DNR status with the patient or family (n=215, 52.6%), however, only 38.4% had read the policy. A total of 275 (67.2%) participants were aware that their institute had a DNR policy, and a lack of patient/family understanding was the most common barrier for the majority to initiate DNR orders (53.9%, n=222). Most of the participants (65.8%, n=269) acknowledged a lack of training and understanding of the concepts of DNR orders. Conclusion: Most physicians who participated in this study were aware of the DNR order concept; however, half of them had never discussed or signed a DNR order. Patients and their families’ misunderstandings were considered the main barriers. In addition, the lack of training in the concepts of DNR orders was considered a major obstacle.