Hong Kong's Top 2% Scientists 2025

Hong Kong has 1,818 scientists on the 2025 single-year Top 2% list, up 18.4% from 1,535 in 2024. That places Hong Kong 20th in the world by number of listed scientists, up 1 place. The Hong Kong Polytechnic University has the most listed scientists (349), followed by Chinese University of Hong Kong (341).

Single Year

1,818

+283 (+18.4%) vs 2024

Career Data

1,482

+212 (+16.7%) vs 2024

World rank by count

#20

up 1 place vs 2024

Institutes

+10 (+20.4%) vs 2024

Scientists in Hong Kong on the list, by year

The single-year count has grown 76% since 2020.

Single-year list, change on the previous year

2021+18.8%

2022+3.5%

2023+14.3%

2024+5.7%

2025+18.4%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	1,033		878
2021	1,227	+18.8%	1,018	+15.9%
2022	1,270	+3.5%	1,099	+8.0%
2023	1,452	+14.3%	1,176	+7.0%
2024	1,535	+5.7%	1,270	+8.0%
2025	1,818	+18.4%	1,482	+16.7%

Top 10 institutes in Hong Kong

By number of listed scientists

Single-year list2025

Show the list

All 1,818 scientists

Single-year list2025

The first 100 are free to browse.

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Rank in Hong Kong	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	255	ZH Zhang, Hua	City University of Hong Kong	Nanoscience & Nanotechnology	Rank 8
2	656	PC Poon, Chi Sun	The Hong Kong Polytechnic University	Building & Construction	Rank 7
3	766	NM Ni, Meng	The Hong Kong Polytechnic University	Energy	Rank 22
4	929	ZG Zhao, Guochun	The University of Hong Kong	Geochemistry & Geophysics	Rank 4
5	1,158	TT Teo, Timothy	Chinese University of Hong Kong	Education	Rank 19
6	1,191	CG Chen, Guanrong (Ron)	City University of Hong Kong	Fluids & Plasmas	Rank 9
7	1,261	CT Chiu, Thomas K.F.	Chinese University of Hong Kong	Education	Rank 20
8	1,264	ZX Zhang, Xiang	The University of Hong Kong	Optics	Rank 6
9	1,272	ZY Zhu, Y. T.	City University of Hong Kong	Materials	Rank 24
10	1,386	YX Yao, Xin	Lingnan University, Hong Kong	Artificial Intelligence & Image Processing	Rank 84
11	1,416	KM Kwan, Mei Po	Chinese University of Hong Kong	Geography	Rank 7
12	1,486	NS Ng, S. C.	Chinese University of Hong Kong	Gastroenterology & Hepatology	Rank 21
13	1,558	CP Chu, Paul K.	City University of Hong Kong	Applied Physics	Rank 44
14	1,617	ZT Zhang, Tong	Hong Kong University of Science and Technology	Artificial Intelligence & Image Processing	Rank 93
15	1,624	LB Liu, Bin	City University of Hong Kong	Nanoscience & Nanotechnology	Rank 53
16	1,633	ZC Zhi, Chunyi	The University of Hong Kong	Nanoscience & Nanotechnology	Rank 54
17	1,637	TX Tang, Xiaoou	Chinese University of Hong Kong	Artificial Intelligence & Image Processing	Rank 95
18	1,652	LD Leung, Dennis Yiu Cheong	The University of Hong Kong	Energy	Rank 45
19	1,676	WQ Weng, Qihao	The Hong Kong Polytechnic University	Geological & Geomatics Engineering	Rank 10
20	1,742	NC Ng, Charles Wang Wai	Hong Kong University of Science and Technology	Geological & Geomatics Engineering	Rank 11
21	1,775	LX Lou, Xiong Wen	City University of Hong Kong	Nanoscience & Nanotechnology	Rank 62
22	1,783	CD Carless, David Robert	The University of Hong Kong	Education	Rank 29
23	1,910	SC Song, Chunshan	Chinese University of Hong Kong	Energy	Rank 53
24	1,931	LC Liu, Chain Tsuan	City University of Hong Kong	Materials	Rank 36
25	1,962	YQ Yang, Qiang S.	Hong Kong University of Science and Technology	Artificial Intelligence & Image Processing	Rank 108
26	2,016	GP Gong, Peng	The University of Hong Kong	Geological & Geomatics Engineering	Rank 13
27	2,046	YJ Yu, Jun	Chinese University of Hong Kong, Faculty of Medicine	Oncology & Carcinogenesis	Rank 47
28	2,178	SM Shao, Minhua	Hong Kong University of Science and Technology	Nanoscience & Nanotechnology	Rank 83
29	2,237	WV Wong, Vincent Wai Sun	Chinese University of Hong Kong	Gastroenterology & Hepatology	Rank 31
30	2,331	NT Ng, Thomas W.H.	The University of Hong Kong	Business & Management	Rank 75
31	2,532	QS Qin, S. Joe	Lingnan University, Hong Kong	Industrial Engineering & Automation	Rank 26
32	2,546	LS Liang, Shunlin	The University of Hong Kong	Geological & Geomatics Engineering	Rank 20
33	2,580	JJ Jia, Jiaya	Chinese University of Hong Kong	Artificial Intelligence & Image Processing	Rank 139
34	2,588	LD LEE, Duu-Jong	City University of Hong Kong	Biotechnology	Rank 8
35	2,809	HK Hew, Khe Foon Timothy	The University of Hong Kong	Education	Rank 35
36	2,820	LW Lu, Weisheng Wilson	The University of Hong Kong	Building & Construction	Rank 21
37	2,912	MT Mok, Tony Shu Kam	Chinese University of Hong Kong	Oncology & Carcinogenesis	Rank 71
38	3,073	TJ Teng, Jin-Guang	The Hong Kong Polytechnic University	Civil Engineering	Rank 11
39	3,115	WJ Woo, Jean L.F.	Chinese University of Hong Kong	Nutrition & Dietetics	Rank 12
40	3,489	YJ Yan, Jinyue	The Hong Kong Polytechnic University	Energy	Rank 91
41	3,537	CF Chen, Fangfang	The University of Hong Kong	Social Psychology	Rank 106
42	3,570	CA Chan, Albert P.C.	The Hong Kong Polytechnic University	Building & Construction	Rank 30
43	3,575	ST Shek, Tan Lei Daniel	The Hong Kong Polytechnic University	Endocrinology & Metabolism	Rank 53
44	3,631	LK Liew, Kim Meow	City University of Hong Kong	Applied Mathematics	Rank 15
45	3,661	ZX Zhang, Xiaoling	The University of Hong Kong	Environmental Sciences	Rank 82
46	3,664	DD Dudgeon, David	The University of Hong Kong	Marine Biology & Hydrobiology	Rank 13
47	3,888	MT Mak, Tak Wah	The University of Hong Kong Li Ka Shing Faculty of Medicine	Immunology	Rank 84
48	3,925	CQ Chen, Qingyan (Yan)	The Hong Kong Polytechnic University	Building & Construction	Rank 35
49	3,969	CT Cheng, T. C.Edwin	The Hong Kong Polytechnic University	Operations Research	Rank 16
50	4,098	LH Lo, Hoi Kwong	The University of Hong Kong	General Physics	Rank 35
51	4,107	ZT Zhang, Tong	The University of Hong Kong	Environmental Sciences	Rank 87
52	4,179	CG Chen, Guohua	City University of Hong Kong	Chemical Engineering	Rank 17
53	4,222	SJ Sung, Joseph Jao Yiu	Chinese University of Hong Kong	Gastroenterology & Hepatology	Rank 56
54	4,280	FG Feng, Gang	City University of Hong Kong	Industrial Engineering & Automation	Rank 48
55	4,444	LY Li, Yuguo	The University of Hong Kong	Building & Construction	Rank 42
56	4,456	CK Chau, K. W.	The Hong Kong Polytechnic University	Mechanical Engineering & Transports	Rank 43
57	4,603	TS Tjong, S. C.	City University of Hong Kong	Materials	Rank 86
58	4,685	Yeung, Henry Wai chung	Chinese University of Hong Kong	Geography	Rank 21
59	4,874	CC Chai, Ching Sing	Chinese University of Hong Kong	Education	Rank 57
60	4,884	RA Rogach, Andrey L.	City University of Hong Kong	Nanoscience & Nanotechnology	Rank 179
61	4,977	ZX Zhao, Xiao Ling	The Hong Kong Polytechnic University	Civil Engineering	Rank 19
62	5,070	Zhou, Kevin Zheng	The University of Hong Kong	Marketing	Rank 38
63	5,144	LH Lan, Hui Yao	Chinese University of Hong Kong	Urology & Nephrology	Rank 31
64	5,211	CC Chan, Cecilia Ka Yuk	The University of Hong Kong	Education	Rank 61
65	5,383	NY Ng, Yan Yung Edward	Chinese University of Hong Kong	Building & Construction	Rank 44
66	5,417	CC Cheung, Christy M.K.	Hong Kong Baptist University	Information Systems	Rank 29
67	5,511	BG Bu, Guojun	Hong Kong University of Science and Technology	Neurology & Neurosurgery	Rank 284
68	5,550	PS Pan, Sinno Jialin	Chinese University of Hong Kong	Artificial Intelligence & Image Processing	Rank 291
69	5,585	HS Hui, Shu Yuan Ron	The University of Hong Kong	Electrical & Electronic Engineering	Rank 18
70	5,663	YP Yip, Paul Siu Fai	The University of Hong Kong	Psychiatry	Rank 135
71	5,724	TD Tsang, Daniel C.W.	Hong Kong University of Science and Technology	Environmental Sciences	Rank 118
72	5,804	LY Lu, Yi	City University of Hong Kong	Urban & Regional Planning	Rank 16
73	5,844	ZQ Zhang, Qingfu	City University of Hong Kong	Artificial Intelligence & Image Processing	Rank 304
74	5,882	YH Yang, Hai	Hong Kong University of Science and Technology	Logistics & Transportation	Rank 21
75	6,228	MR Ma, Ronald Ching Wan	Chinese University of Hong Kong	Endocrinology & Metabolism	Rank 111
76	6,268	SP Sheng, Ping	Hong Kong University of Science and Technology	Applied Physics	Rank 136
77	6,330	LK Lai, Kee hung	The Hong Kong Polytechnic University	Operations Research	Rank 26
78	6,483	ZL Zhang, Lei	The Hong Kong Polytechnic University	Artificial Intelligence & Image Processing	Rank 341
79	6,675	LH Löe, Harald A.	Prince Philip Dental Hospital	Dentistry	Rank 16
80	6,677	NW Ngai, Wai Ting Eric	The Hong Kong Polytechnic University	Information Systems	Rank 32
81	6,731	Letaief, Khaled Ben	Hong Kong University of Science and Technology	Networking & Telecommunications	Rank 66
82	6,817	BI Benzie, Iris Frances Forster	The Hong Kong Polytechnic University	Nutrition & Dietetics	Rank 36
83	7,035	ZD Zou, Di	The Hong Kong Polytechnic University	Education	Rank 87
84	7,036	KR King, Ronnel Bornasal	Chinese University of Hong Kong	Education	Rank 88
85	7,051	LD Lo, Dennis Yuk Ming	Chinese University of Hong Kong	General Clinical Medicine	Rank 3
86	7,078	FX Fan, Xitao	Chinese University of Hong Kong	Education	Rank 90
87	7,122	ZS Zhang, Shuang	The University of Hong Kong	Optics	Rank 37
88	7,256	CJ Chan, Johnny C.L.	City University of Hong Kong	Meteorology & Atmospheric Sciences	Rank 127
89	7,264	YA Yeung, Andy Wai Kan	The University of Hong Kong	Dentistry	Rank 19
90	7,317	Hu, Guangwei	The Hong Kong Polytechnic University	Languages & Linguistics	Rank 45
91	7,326	ZH Zhao, Hengshuang	The University of Hong Kong	Artificial Intelligence & Image Processing	Rank 367
92	7,464	MK Mok, Ka Ho Joshua	The Hang Seng University of Hong Kong	Education	Rank 95
93	7,533	ZS Zhao, Shijun	City University of Hong Kong	Materials	Rank 133
94	7,556	LH Li, Heng	The Hong Kong Polytechnic University	Building & Construction	Rank 65
95	7,558	RJ Ren, Jingzheng	The Hong Kong Polytechnic University	Energy	Rank 193
96	7,569	JX Jing, Xingjian	City University of Hong Kong	Acoustics	Rank 8
97	7,610	RY Ren, Yang	City University of Hong Kong	Materials	Rank 134
98	7,858	LP Luo, Ping	The University of Hong Kong	Artificial Intelligence & Image Processing	Rank 390
99	8,043	TK Tu, Kingning N.	City University of Hong Kong	Applied Physics	Rank 162
100	8,070	WJ Wang, Jun	City University of Hong Kong	Artificial Intelligence & Image Processing	Rank 399
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Countries with a similar count

Single-year list2025

Belgium2,124 scientists

Saudi Arabia2,110 scientists

Denmark2,061 scientists

Israel1,637 scientists

Turkey1,564 scientists

Taiwan1,470 scientists

Explore other countries

Single-year list2025

China31,697 scientists

Japan5,713 scientists

South Korea3,695 scientists

Macau197 scientists

India6,236 scientists

Iran2,534 scientists

All countries on the world map

Frequently asked questions

How many scientists from Hong Kong are in the 2025 Stanford Top 2% list?

1,818 scientists affiliated with Hong Kong are on the 2025 single-year list, and 1,482 are on the career-long list.

Which institute in Hong Kong has the most Top 2% scientists?

On the 2025 single-year list, The Hong Kong Polytechnic University has the most listed scientists from Hong Kong, with 349. It is followed by Chinese University of Hong Kong with 341.

How has the number of Top 2% scientists in Hong Kong changed since 2020?

On the single-year list, Hong Kong went from 1,033 scientists in 2020 to 1,818 in 2025, a change of +76.0%.

What is the difference between the single-year and career-long lists?

The single-year list ranks scientists on the citations their work received in one year. The career-long list ranks them on citations across their whole career. Both lists are published every year, and a scientist can be on one, both or neither.

What is the official source of this data?

The rankings come from the science-wide author databases of standardized citation indicators published by Ioannidis et al. in the Elsevier Data Repository, updated every year. TOPSCINET, an independent platform, organises that data by country, year, institute and field, so you can compare and explore it.