Dr Riyad Alghamdi is the Acting CEO of the Saudi Public Health Authority (PHA) and Lead for the Public Health & Health Security Pillars under the Health Sector Transformation Program (HSTP). He holds an MPH from Johns Hopkins Bloomberg School of Public Health and is a Saudi Board‑certified specialist in Preventive Medicine. Previously, as Deputy CEO of PHA, he led the National Health Security Strategy, supervised the national COVID‑19 response plan, and played a pivotal role in transforming the former SCDC into the Saudi Public Health Authority, including legal and governance reforms. Dr Alghamdi has deep expertise in strategic planning, public health law, and emergency preparedness. He currently represents Saudi Arabia on the WHO Standing Committee on Health Emergency Prevention, Preparedness and Response (SCHEPPR).