Background: The intensive care unit ICU is one of the most stressful places and the nurses in the ICU are highly prone to burnout. In Dammam medical complex (DMC) the burnout studies are limited therefore this study aimed to measure the level of burnout among nurses working in the ICU adult at DMC Methods: a descriptive cross-sectional study. Conducted at the ICU adult in Dammam medical complex in the kingdom of Saudi Arabia, from 2021 to 2022, 73 nurses were involved in the study from 120 nurses working in ICU, A self-administered questionnaire was used the Maslach Burnout Inventory Human Services Survey to collect the data. The data were analyzed using IBM SPSS version 29.0.0.0(241) Results: Based on a sample size of 73 nurses who participated in the questionnaire out of 120 nurses meeting the inclusion criteria for burnout prevalence among ICU nurses in DMC during 2021 -2022.Total Score using MBI-HSS Showed the following result: 5 out of the 73 ICU nurses who had done the survey had Engaged profile scores on all three scales: low on Emotional Exhaustion and Depersonalization and high on Personal Accomplishment. While 11 ICU nurses with an Ineffective profile, have a low Personal Accomplishment score. The Ineffective profile is characterized by diminished feelings of competence and achievement in one's work. There were 30 ICU nurses with an Overextended profile, they have a different psychological experience, shown by a high Emotional Exhaustion score. The Disengaged profile in this study is zero, features of this profile will be a high Depersonalization score which signals a crisis in values or diminished confidence in management. While the previous three profiles are characterized by one problematic scale score the Burnout ICU nurses, the account of ICU nurses with a burnout profile is 27, this profile has problematic results on both Emotional Exhaustion and Depersonalization. emotional exhaustion with a total average (mean) of 37.23, a max score of 53/60 with a Standard deviation of 11.129, Emotional exhaustion of this severity and prevalence will affect the work performance and quality of care given to the patients. While the depersonalization score with a total average(mean) of 12.11, the max score is 30/60 with a standard deviation of 7.08. Moderate intensity may affect the work performance and quality of care given to patients. At the same time, some of The ICU Staff suffer from a Lack of Personal Accomplishment with a total average of 33.03, and a max score of 45 /60 with a standard deviation of 7.02. Conclusion: The study found that nurses have relatively high levels of burnout due to high workload and low personal accomplishment to leave ICU at any chance given within the same year. Keywords: Burnout, ICU, Level of burnout among nurses in ICU, level of burnout among nurses, burnout and intensive care unit nurses, critical care.