diploma in phamactical technology ABSTRACT Medication errors are broadly defined as any error in the prescribing, dispensing, or administration of a drug, irrespective of whether such errors lead to adverse consequences or not. Medication errors are a significant issue affecting patient safety and costs in hospitals oftenposing dangerous consequences for patients. Through research, they have been shown to be a significant issue affecting patient safety in America, Europe, and Asia. In Africa, studies were done in Ghana confirming the occurrence of medication errors. However, in Kenya, no documented study is available concerning medication errors. An analysis of medication errors can help healthcare professionals and managers identify why medication errors occur and provide insight into how to make improvement to prevent or reduce them. The study was done at Migori County Referral Hospital. Data was collected between August and December2017 from patients’ files, to establish occurrence of the medication errors. A structuredquestionnaire was used to interview the health care providers at the hospital. Direct observation of dispensing encounters was carried out and a checklist used to categorize the errors. The results were analyzed by the Statistical Package for Social Sciences (SPSS) v 11.5. Data was presented in form of tables, graphs and frequency charts. Approval to conduct the study was sought from the medical superintendent for the Hospital. The results obtained revealed that there are medication errors at Migori County Referral Hospital and thecontributing factors. This information will be useful to the health system in Kenya in order to have better planning in the future with regard to level of training and staffing of Health Care Workers in order to reduce occurrence of medication errors and improve on the treatment outcomes.