| Western Regional Science Association | |
| Western Vascular Society | |
| WFCMS-World Federation of Chinese Medicine Societies | |
| Wharton-QS Reimagine Education | 07/2020 - 10/2020 | Judge (Academic) | | Mr Cheng Cheng Shu Shan | 07/2019 - 10/2019 | Judge (ICT) | | Mr Cheng Cheng Shu Shan |
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| WHO | |
| WHO Animal Influenza Network | |
| WHO Research Group of Post-ovulatory methods of fertility regulation | |
| WHO Strategic and Technical Advisory Committee on HIV, Viral Hepatitis and Sexually Transmitted Infections | |
| WHO Technical Advisory Group on Comprehensive Cervical Cancer Control: a guide for essential practice | |
| WHO Western Pacific Regional Office | 2016-19 | Deputy Chairperson, Universal Health Coverage Technical Advisory Group | | |
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| WIC (Web Intelligence Consortium) | |
| Willi Hennig Society | |
| Willi Hennig Society (WHS) | 07/2019 - present | Fellow (elected) | | |
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| William J. Gies Award Committee, IADR | |
| WJP Rule of Law Index 2012-13 | |
| Woman’s Health Advisory Group, Hong Kong | |
| Women Dentists Committee, Local Organizing Committee, 2012 FDI Annual World Dental Congress | |
| Women Doctors Association | |
| Women in Cancer Research, American Association for Cancer Research | 2009-2014 | Member | | Dr Ip Ip Ka Man |
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| Women in Eye and Vision Research (WEAVR), The Association for Research in Vision and Ophthalmology (ARVO) | 05/2012 - 05/2015 | Networking Committee member in 2012 | | | 05/2017 - 05/2023 | Leadership Committee Member | | |
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