The research aims to verify the impact of perceived organizational support on the scientific performance of teachers in the faculties of the University of Duhok, and a random sample of (249) members of the teaching staff was elected, and field-side data was collected through a questionnaire, which was prepared from the reality of previous studies and related to the research variables, as It included (30) phrases for measuring the variables and dimensions that the research adopted in its hypothetical scheme, where the perceived organizational support was measured through four dimensions represented by rewards and incentives, participation in the decision, organizational justice, and organizational commitment, while scientific performance was measured through performance in teaching and performance. in scientific research. The problem is summed up in knowing the possibility of perceived organizational support in contributing to improving the scientific performance of teachers in the faculties of the University of Duhok. The research was based on the descriptive and analytical approach in preparing the theoretical side and analyzing the hypotheses for the field side, as the statistical program SPSS V.26 was used to perform the statistical analysis of the data. One of the most important conclusions was that the perceived organizational support has a clear impact on the scientific performance of the teachers and that there is a difference in the levels of both the perceived organizational support and the scientific performance among the teaching staff in the humanitarian and scientific colleges. At the University of Duhok, with the means and requirements of perceived organizational support that it provides to its faculty members, in addition to paying attention to preparing the requirements to raise the levels of scientific performance, through performance in teaching and performance in scientific research..