An Internal Audit on Quality Management System MS ISO 9001:2015 in University Malaya Medical Centre for the year of 2018 has been successfully conducted on 16th - 18 January 2018. The audit was one of UMMC methods to monitor and control the quality of procedures and operations according to the standards of MS ISO 9001:2015. This internal audit was in preparation for SIRIM QAS International Sdn. Bhd Surveillance Audit. There were 70 internal auditors from UMMC involved in auditing 53 clinical, support clinical and non clinical departments/units.