Yonathan AbebeIbrahim Mohammed2025-08-252025-08-252025-04-10https://etd.aau.edu.et/handle/123456789/7126Operating rooms (ORs) are critical healthcare resources that face efficiency challenges globally. An efficient OR should start early, finish on time , allocate minimal time for preparation between procedures and have a low rate of cancellation. Poor utilization of the OR leads to wastage and drains resources in an already underserved population in low income countries with a highly unmet need for surgery. The study is important in addressing OR efficiency and delays, enhanced patient care and improving OR staff satisfactionen-USAnesthesia Ready TimeSurgeon controlled timeAnesthesia controlled timeOperating Room EfficiencyTotal procedure timeThesis