Objective: Nursing process guides the students in the diagnosing, planning, intervention and evaluation ofpatients/families, and it also gives a systematic point of view. The Omaha System is used as a nursingclassification system in public health nursing course practice areas. It was conducted in order to examine thenursing diagnoses identified by the students according to the Omaha System.Method: It was a retrospective, analytical research. Practice files of 51 students who took the public healthnursing course created the sample.Results: According to the Omaha problem classification list (PCL), the students in the study identified a totalof 412 problems. According to Omaha PCL, the students mostly used the area of health behavior, followed bythe physiological, psychosocial and environmental areas respectively. It was determined that 73% of thestudents had sufficient skills to use the Omaha System and 26.8% of them were inadequate.Conclusion: It was observed that the nursing diagnoses identified by the students in line with the determinedlearning targets were sufficient.