Thailand's Top 2% Scientists 2023: Career-Long List

Thailand has 230 scientists on the 2023 career-long Top 2% list, up 10.0% from 209 in 2022. That places Thailand 42nd in the world by number of listed scientists. Chulalongkorn University has the most listed scientists (27), followed by Mahidol University (18).

Single Year

341

+41 (+13.7%) vs 2022

Career Data

230

+21 (+10.0%) vs 2022

World rank by count

#42

No change vs 2022

Institutes

+11 (+18.3%) vs 2022

Scientists in Thailand on the list, by year

The career-long count has grown 69% since 2020.

Career-long list, change on the previous year

2021+40.4%

2022+9.4%

2023+10.0%

2024+8.7%

2025+20.8%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	187		136
2021	263	+40.6%	191	+40.4%
2022	300	+14.1%	209	+9.4%
2023	341	+13.7%	230	+10.0%
2024	392	+15.0%	250	+8.7%
2025	454	+15.8%	302	+20.8%

Top 10 institutes in Thailand

By number of listed scientists

Career-long list2023

Show the list

All 230 scientists

Career-long list2023

The first 100 are free to browse.

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Rank in Thailand	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	618	MM Maes, Michael	Faculty of Medicine, Chulalongkorn University	Psychiatry	Rank 20
2	6,685	HK Hyde, Kevin D.	Mae Fah Luang University	Mycology & Parasitology	Rank 7
3	9,199	MC Morley, C. K.	PTT Exploration and Production Public Company Limited	Geochemistry & Geophysics	Rank 106
4	11,392	PK Peltzer, Karl	Mahidol University	Public Health	Rank 99
5	16,407	WS Wongwises, Somchai	Thailand National Science and Technology Development Agency	Mechanical Engineering & Transports	Rank 100
6	22,196	SP Supaphol, Pitt	Chulalongkorn University	Polymers	Rank 190
7	23,004	DS Dowell, Scott F.	Thailand Ministry of Public Health	Microbiology	Rank 567
8	26,277	OM Ogawa, Makoto	Vidyasirimedhi Institute of Science and Technology	Chemical Physics	Rank 588
9	27,007	PP Promvonge, Pongjet	King Mongkut's Institute of Technology Ladkrabang	Mechanical Engineering & Transports	Rank 154
10	27,706	NN Nakabayashi, Nobuo	Chulalongkorn University	Biomedical Engineering	Rank 115
11	28,506	LS Looareesuwan, Sornchai	Hospital for Tropical Diseases, Bangkok	Tropical Medicine	Rank 42
12	28,534	NP Naphon, Paisarn	Srinakharinwirot University	Mechanical Engineering & Transports	Rank 165
13	33,710	FT Flegel, Timothy W.	Thailand National Center for Genetic Engineering and Biotechnology	Fisheries	Rank 49
14	34,485	ES Eiamsa-ard, Smith	Mahanakorn University of Technology	Mechanical Engineering & Transports	Rank 206
15	36,147	TV Thongboonkerd, Visith	Siriraj Hospital	Biochemistry & Molecular Biology	Rank 1,571
16	37,283	PP Patterson, Paul	Chiang Mai University	Marketing	Rank 75
17	39,086	WJ Warren, John	Chulalongkorn University	Geology	Rank 43
18	43,447	NK Nademanee, Koonlawee	Faculty of Medicine, Chulalongkorn University	Cardiovascular System & Hematology	Rank 1,678
19	43,630	AM Allen, Michael A.	Mahidol University	Psychiatry	Rank 912
20	46,773	BF Beamish, F. W.H.	Burapha University	Fisheries	Rank 80
21	46,871	PB Prideaux, Bruce	Prince of Songkla University	Sport, Leisure & Tourism	Rank 56
22	50,836	SP Sriamornsak, Pornsak	Silpakorn University	Pharmacology & Pharmacy	Rank 444
23	50,997	DP Dung, Phan Minh	Asian Institute of Technology Thailand	Artificial Intelligence & Image Processing	Rank 989
24	53,640	PY Poovorawan, Yong	Faculty of Medicine, Chulalongkorn University	Virology	Rank 409
25	56,838	QD Quicke, Donald L.J.	Chulalongkorn University	Evolutionary Biology	Rank 532
26	59,605	CP Chindaprasirt, Prinya	Khon Kaen University	Building & Construction	Rank 114
27	62,916	SB Sripa, Banchob	Faculty of Medicine, Khon Kaen University	Mycology & Parasitology	Rank 111
28	64,912	WD Wichelns, Dennis	Stockholm Environment Institute	Environmental Engineering	Rank 261
29	67,220	MJ McNeely, Jeffrey A.	Society for Conservation Biology Asia Section	Ecology	Rank 1,100
30	70,034	HS Horpibulsuk, Suksun	Suranaree University of Technology	Geological & Geomatics Engineering	Rank 280
31	71,227	CR Coker, Richard	Mahidol University	Public Health	Rank 647
32	72,069	SN Sombatsompop, Narongrit	King Mongkut's University of Technology Thonburi	Polymers	Rank 657
33	72,937	KP Kumam, Poom	King Mongkut's University of Technology Thonburi	Applied Mathematics	Rank 157
34	73,515	LL Lebel, Louis	Chiang Mai University	Environmental Sciences	Rank 415
35	78,871	VS von Seidlein, Lorenz	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 159
36	79,728	RR Ritchie, Raymond J.	Prince of Songkla University	Plant Biology & Botany	Rank 1,084
37	80,107	SS Soponronnarit, Somchart	King Mongkut's University of Technology Thonburi	Food Science	Rank 377
38	86,158	KH Kondo, Hisatake	Faculty of Medicine, Khon Kaen University	Neurology & Neurosurgery	Rank 5,690
39	88,444	VC Visvanathan, Chettiyappan	Asian Institute of Technology Thailand	Environmental Sciences	Rank 531
40	90,887	Thounthong, Phatiphat	King Mongkut's University of Technology North Bangkok	Electrical & Electronic Engineering	Rank 248
41	90,993	SV Sitprija, Visith	Thai Red Cross Agency	General & Internal Medicine	Rank 1,159
42	91,782	MG Moschis, George P.	College of Management Mahidol University	Marketing	Rank 231
43	91,871	TP Thorner, Paul Scott	Faculty of Medicine, Chulalongkorn University	Pathology	Rank 283
44	96,420	LP Lumbiganon, Pisake	Faculty of Medicine, Khon Kaen University	General & Internal Medicine	Rank 1,234
45	97,121	SR Sothornvit, Rungsinee	Kasetsart University, Kamphaeng Saen Campus	Food Science	Rank 478
46	98,779	ZA Ziegler, Alan D.	Maejo University	Environmental Engineering	Rank 448
47	99,860	DS Dhakal, Shobhakar	Asian Institute of Technology Thailand	Energy	Rank 1,251
48	99,901	NH Nguyen, Hung T.	Chiang Mai University	Artificial Intelligence & Image Processing	Rank 1,864
49	101,157	FS Fucharoen, Suthat	Institute of Molecular Biosciences, Mahidol University	Immunology	Rank 2,791
50	101,820	NI Ngamroo, Issarachai	King Mongkut's Institute of Technology Ladkrabang	Energy	Rank 1,281
51	103,052	WH Wilde, Henry	Chulalongkorn University	General & Internal Medicine	Rank 1,322
52	104,143	AS Adisakwattana, Sirichai	Chulalongkorn University	Food Science	Rank 517
53	106,065	KS Kalayanarooj, Siripen	Thailand Ministry of Public Health	Tropical Medicine	Rank 219
54	109,667	MO Mahian, Omid	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 749
55	110,240	LV Lohsiriwat, Varut	Siriraj Hospital	Surgery	Rank 987
56	110,623	SD Smith, Duncan R.	Institute of Molecular Biosciences, Mahidol University	Virology	Rank 956
57	110,627	TW Tangsrirat, Worapong	King Mongkut's Institute of Technology Ladkrabang	Electrical & Electronic Engineering	Rank 310
58	110,635	KE Konishi, Eiji	Faculty of Tropical Medicine, Mahidol University	Virology	Rank 958
59	111,143	AA Anal, Anil Kumar	Asian Institute of Technology Thailand	Food Science	Rank 555
60	112,613	VG van Griensven, Frits	Thai Red Cross Agency	Virology	Rank 971
61	113,092	KJ Kavanagh, John J.	Chulalongkorn University	Oncology & Carcinogenesis	Rank 4,413
62	113,360	GS Gheewala, Shabbir H.	King Mongkut's University of Technology Thonburi	Environmental Sciences	Rank 719
63	116,674	TV Thamlikitkul, Visanu	Siriraj Hospital	General & Internal Medicine	Rank 1,502
64	117,554	WM Wanapat, Metha	Khon Kaen University	Dairy & Animal Science	Rank 309
65	120,413	SS Sirisinha, Stitaya	Mahidol University	Tropical Medicine	Rank 263
66	122,014	DS Devahastin, Sakamon	King Mongkut's University of Technology Thonburi	Food Science	Rank 614
67	122,114	PP Phanuphak, Praphan	Institute of HIV Research and Innovation	Virology	Rank 1,051
68	123,156	LJ Limtrakul, Jumras	Vidyasirimedhi Institute of Science and Technology	Chemical Physics	Rank 2,354
69	124,956	SS Siengchin, Suchart	King Mongkut's University of Technology North Bangkok	Polymers	Rank 1,135
70	127,233	SA Sumalee, Agachai	Chulalongkorn University	Logistics & Transportation	Rank 191
71	128,573	AP Aramwit, Pornanong	Chulalongkorn University	Pharmacology & Pharmacy	Rank 1,235
72	128,690	SA Sirivat, Anuvat	Chulalongkorn University	Polymers	Rank 1,177
73	128,823	VT Vilaivan, Tirayut	Chulalongkorn University	Organic Chemistry	Rank 2,282
74	130,461	YY Yamada, Yuzo	Thailand National Center for Genetic Engineering and Biotechnology	Microbiology	Rank 3,221
75	132,539	SU Siripatrawan, Ubonrat	Chulalongkorn University	Food Science	Rank 675
76	134,026	KS Kulprathipanja, Santi	Chulalongkorn University	Chemical Engineering	Rank 635
77	134,467	CA Chaipanich, Arnon	Chiang Mai University	Applied Physics	Rank 3,737
78	134,858	NT Nakase, Takashi	Thailand National Center for Genetic Engineering and Biotechnology	Microbiology	Rank 3,327
79	135,877	YY Yuthavong, Yongyuth	Thailand National Center for Genetic Engineering and Biotechnology	Mycology & Parasitology	Rank 308
80	136,717	BD Bergado, Dennes T.	Asian Institute of Technology Thailand	Geological & Geomatics Engineering	Rank 621
81	137,050	CO Chailapakul, Orawon	Chulalongkorn University	Analytical Chemistry	Rank 1,052
82	138,301	BS Blacksell, Stuart D.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 325
83	140,342	TY Tanaka, Yasuyuki	Mahidol University	Polymers	Rank 1,254
84	140,542	DD Dawe, David	FAO	Agronomy & Agriculture	Rank 749
85	141,897	NS Nimmannitya, Suchitra	Queen Sirikit National Institute of Child Health	Tropical Medicine	Rank 336
86	142,581	AW Aekplakorn, Wichai	Faculty of Medicine Ramathibodi Hospital, Mahidol University	General & Internal Medicine	Rank 1,839
87	143,752	WT Witoon, Thongthai	Kasetsart University	Energy	Rank 1,907
88	146,147	MS Maensiri, Santi	Suranaree University of Technology	Applied Physics	Rank 4,074
89	146,306	SS Shrestha, Sangam	Asian Institute of Technology Thailand	Environmental Engineering	Rank 714
90	147,144	PP Pitisuttithum, Punnee	Faculty of Tropical Medicine, Mahidol University	Virology	Rank 1,260
91	147,228	GM Gleeson, M. Paul	King Mongkuts University of Technology	Medicinal & Biomolecular Chemistry	Rank 537
92	147,607	LK Likhitwitayawuid, Kittisak	Chulalongkorn University	Medicinal & Biomolecular Chemistry	Rank 538
93	149,416	DP Dejkriengkraikul, Pornngarm	Chiang Mai University	Oncology & Carcinogenesis	Rank 5,670
94	151,030	RP Rattanadecho, Phadungsak	Thammasat University	Mechanical Engineering & Transports	Rank 1,063
95	153,106	SA Suksamrarn, Apichart	Ramkhamhaeng University	Medicinal & Biomolecular Chemistry	Rank 562
96	156,526	TA Tassanakajon, Anchalee	Chulalongkorn University	Fisheries	Rank 416
97	156,835	PS Phanichphant, Sukon	Chiang Mai University	Materials	Rank 2,133
98	157,948	BN Bhamarapravati, Natth	Mahidol University	Tropical Medicine	Rank 376
99	161,121	EP Edwards, Peter	Asian Institute of Technology Thailand	Fisheries	Rank 433
100	162,495	VW Visessanguan, Wonnop	Thailand National Center for Genetic Engineering and Biotechnology	Food Science	Rank 853
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Countries with a similar count

Career-long list2023

Mexico352 scientistsin 2023

Malaysia320 scientistsin 2023

United Arab Emirates262 scientistsin 2023

Argentina226 scientistsin 2023

Chile192 scientistsin 2023

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Career-long list2023

Singapore956 scientistsin 2023

Vietnam64 scientistsin 2023

Indonesia29 scientistsin 2023

Philippines29 scientistsin 2023

China9,013 scientistsin 2023

Japan8,126 scientistsin 2023

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Frequently asked questions

How many scientists from Thailand are in the 2023 Stanford Top 2% list?

341 scientists affiliated with Thailand are on the 2023 single-year list, and 230 are on the career-long list.

Which institute in Thailand has the most Top 2% scientists?

On the 2023 career-long list, Chulalongkorn University has the most listed scientists from Thailand, with 27. It is followed by Mahidol University with 18.

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

On the career-long list, Thailand went from 136 scientists in 2020 to 230 in 2023, a change of +69.1%.

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.