ABSTRACT Employee Job performance is the major issue in an organization due to high level of inefficiencies in the discharge of their duties by the general public due to poor infrastructure, inadequate logistics and equipment, poor remuneration and insufficient reward system have always led to the low level of public confidence and respect in the local government. The study therefore aimed at assessing the effectiveness of the performance appraisal on employee Job performance in Garowe local government, Puntland Somalia. The researcher was guided with goal setting theory. The objectives of the study were; to examine the impact of employee Assessment and Measurement on Employee Job performance in Garowe Puntland Somalia, to evaluate employee’s perception towards performance appraisal system in Garowe Puntland Somalia, to identify the linkage between performance appraisal and Employee Job performance and to examine the challenges mitigating against performance appraisal in Garowe Puntland Somalia The study involved the application of descriptive survey design. For this study, the design enabled the researcher to collect data from a sample of the population in order to describe the impact of performance Appraisal on Employee Job performance in Garowe Puntland, Somalia. This research design allowed the researcher to study the impact of performance appraisal on Employee Job performance in Garowe Puntland, Somalia. The population consisted of all technical, administrative and exhibitors. The study found out that the local government section in Garowe Puntland, Somalia, like many public sectors, performance appraisal is assessed once a year, especially in the middle of the year. The study concluded performance appraisal is performed once a year. Apart from that department, it is also responsible for setting the performance standards of the planning department, the department integrates with other departments (involving stakeholders) to give them awareness of the issue and to achieve the desired goals. From the results, the study concluded that the information resulting from the performance Appraisal in both organizations was used at an intermediate level to identify warnings about their unsatisfactory performance and to assist supervisors in making decisions about retention or discharge. The study recommended the local government departments in the Garowe Puntland Somalia to adopt the Principles as a guideline to develop a better performance appraisal system and process in order to deliver better services for employee Job performance.