| O | Diocesan Boys School Primary Division Sub-committee | Others | |
| O | Diocesan Boys' School | Others | |
| J | Diploma course Gerontology | | |
| O | Diploma in Geriatric Medicine, Royal College of Physicians | Professional | |
| O | Diploma in Occupational Safety and Health programme, HKU School of Professional and Continuing Education (SPACE). | Others | |
| J | Direct Allocation Grant | | |
| O | Director Search Committee, Institute of History and Philology/Academia Sinica | Others | |
| O | Disciplinary Board Panel, Lifts and Escalators (Safety) | Statutory | |
| O | Disciplinary Board under Section 11E of Lifts and Escalators (Safety) Ordinance (Cap.327) | Others | |
| O | Disciplinary Board, Hong Kong Insitutue of Surveyors | Others | |
| J | Disciplinary Committee | | |
| O | Disciplinary Committee Panel, Social Workers Registration Board | Others | |
| O | Disciplinary Committee Panel/Social Workers' Registration Board | Others | |
| O | Disciplinary Panel A of the Hong Kong Institute of Certified Public Accountants | Statutory | |
| O | Disciplinary Tribunal Panel Member under the Electricity Ordinance (Cap. 406) | Others | |
| O | Disciplinary Tribunal under Electricity Ordinance, HKSAR Government | Others | |
| O | Discovery Bay City Owners' Committee | Others | |
| O | Discovery Bay ESF Liaison Group | Others | |
| O | Discovery College PTA | Others | |
| P | Discovery of SARS coronavirus-like viruses from Chinese horseshoe bats in Hong Kong | | |
