Dr. Ailan Li is the WHO Representative to Thailand, taking up office in September 2025.

Prior to her current position, Dr. Li served as Assistant Director-General for Universal Health Coverage and Healthier Populations at WHO Headquarters from 2023, where she led global initiatives addressing the environmental, social, and economic determinants of health—such as climate change, tobacco control, chemical safety, road safety, food systems and nutrition, physical activity, air pollution, and radiation—within a comprehensive One Health framework.

Previously, she was the WHO Representative to Cambodia (2019–2023) and Regional Emergency Director for the WHO Health Emergencies Programme in the Western Pacific, also serving as Director of the Division of Health Security and Emergencies in the region.

Before joining WHO, Dr. Li was an Associate Professor at the School of Public Health, Peking University. Her public health career spans preventive medicine, disease prevention and control, health policy, health systems, social science, and food safety.

Dr. Li holds a medical degree from Beijing Medical University, China, and a Master’s degree in Health Social Science from Mahidol University, Thailand.