Thailand's Top 2% Scientists 2026: Career-Long List

Thailand has 343 scientists on the 2026 career-long Top 2% list, up 13.6% from 302 in 2025. That places Thailand 42nd in the world by number of listed scientists. Chulalongkorn University has the most listed scientists (52), followed by Chiang Mai University (22).

Single Year

508

+54 (+11.9%) vs 2025

Career Data

343

+41 (+13.6%) vs 2025

World rank by count

#42

No change vs 2025

Institutes

+10 (+12.3%) vs 2025

Scientists in Thailand on the list, by year

The career-long count has more than doubled 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%

2026+13.6%

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%
2026	508	+11.9%	343	+13.6%

Top 10 institutes in Thailand

By number of listed scientists

Career-long list2026

Show the list

All 343 scientists

Career-long list2026

Showing the 2026 career-long list. Looking for single-year rankings? See the single-year list

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	202	WN White, Nicholas J.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 1
2	3,764	HK Hyde, Kevin D.	Mae Fah Luang University	Mycology & Parasitology	Rank 5
3	5,702	HP Hallinger, Philip	Mahidol University	Education	Rank 24
4	7,878	MC Morley, Christopher Keith	PTT Exploration and Production Public Company Limited	Geochemistry & Geophysics	Rank 91
5	13,524	WS Wongwises, Somchai	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 91
6	14,857	SM Schultz, Marcus Josephus Josephus	Mahidol Oxford Tropical Medicine Research Unit	Emergency & Critical Care Medicine	Rank 47
7	14,992	TH Tanaka, Hirofumi	Chulalongkorn University	Cardiovascular System & Hematology	Rank 672
8	18,411	NF Nosten, François Henri	Faculty of Tropical Medicine, Mahidol University	Tropical Medicine	Rank 18
9	19,900	PP Promvonge, Pongjet	King Mongkut's Institute of Technology Ladkrabang	Mechanical Engineering & Transports	Rank 130
10	22,957	SS Siengchin, Suchart	King Mongkut's University of Technology North Bangkok	Polymers	Rank 190
11	23,408	NP Naphon, Paisan	Srinakharinwirot University	Mechanical Engineering & Transports	Rank 157
12	23,667	LR Laine, Richard M.	Chulalongkorn University	Materials	Rank 298
13	24,813	SP Supaphol, Pitt	Chulalongkorn University	Polymers	Rank 203
14	28,102	OM Ogawa, Makoto	Vidyasirimedhi Institute of Science and Technology	Chemical Physics	Rank 587
15	29,397	SD Solter, Davor	Mahidol University	Developmental Biology	Rank 1,051
16	30,936	FT Flegel, T. W.	Faculty of Science, Mahidol University	Fisheries	Rank 52
17	31,030	ES Eiamsa-ard, Smith	Mahanakorn University of Technology	Mechanical Engineering & Transports	Rank 208
18	31,704	TV Thongboonkerd, Visith	Siriraj Hospital	Biochemistry & Molecular Biology	Rank 1,247
19	32,688	DA Dondorp, A. M.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 46
20	32,693	WJ Warren, John Keith	Chulalongkorn University	Geology	Rank 37
21	33,383	BS Benjakul, Soottawat	Prince of Songkla University	Food Science	Rank 155
22	35,567	NN Nakabayashi, Nobuo	Chulalongkorn University	Biomedical Engineering	Rank 141
23	35,896	LS Looareesuwan, Sornchai	Hospital for Tropical Diseases, Bangkok	Tropical Medicine	Rank 59
24	40,221	JK Jermsittiparsert, Kittisak	Metharath University	Education	Rank 217
25	42,822	CP Chindaprasirt, Prinya	Khon Kaen University	Building & Construction	Rank 108
26	43,451	KP Kumam, Poom	King Mongkut's University of Technology Thonburi	Applied Mathematics	Rank 103
27	44,844	BA Beynen, Anton Christian	Rajamangala University of Technology Isan	Dairy & Animal Science	Rank 80
28	45,109	HS Horpibulsuk, S.	Suranaree University of Technology	Geological & Geomatics Engineering	Rank 220
29	45,237	SP Sriamornsak, Pornsak	Silpakorn University	Pharmacology & Pharmacy	Rank 364
30	48,793	DN Day, Nicholas P.J.	Faculty of Tropical Medicine, Mahidol University	Microbiology	Rank 1,215
31	50,327	GS Gheewala, Shabbir Hussaini	King Mongkut's University of Technology Thonburi	Environmental Sciences	Rank 376
32	52,557	DP Dung, Phanminh	Asian Institute of Technology Thailand	Artificial Intelligence & Image Processing	Rank 1,204
33	52,804	YP Yong Poovorawan, Yong	Faculty of Medicine, Chulalongkorn University	Virology	Rank 367
34	53,772	QD Quicke, Donald L.J.	Chulalongkorn University	Evolutionary Biology	Rank 474
35	57,414	SB Sripa, Banchob B.	Faculty of Medicine, Khon Kaen University	Mycology & Parasitology	Rank 95
36	62,114	LL Lebel, Louis	Chiang Mai University	Environmental Sciences	Rank 473
37	64,002	AA Anal, Anil Kumar	Asian Institute of Technology Thailand	Food Science	Rank 355
38	68,478	RR Ritchie, Raymond J.	Prince of Songkla University	Plant Biology & Botany	Rank 927
39	68,999	TP Thounthong, P.	King Mongkut's University of Technology North Bangkok	Electrical & Electronic Engineering	Rank 187
40	70,696	SN Sombatsompop, Narongrit	King Mongkut's University of Technology Thonburi	Polymers	Rank 623
41	71,137	AS Adisakwattana, Sirichai	Chulalongkorn University	Food Science	Rank 401
42	71,996	HS Hamada, Sihigeyuki	Osaka University	Microbiology	Rank 1,784
43	72,212	SR Sothornvit, Rungsinee	Kasetsart University, Kamphaeng Saen Campus	Food Science	Rank 407
44	76,490	CP Charoensukmongkol, Peerayuth	National Institute of Development Administration	Business & Management	Rank 877
45	76,778	VL Von-Seidlein, Lorenz	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 145
46	77,686	CR Coker, Richard James	Mahidol University	Public Health	Rank 734
47	78,935	DS Dhakal, Shobhakar	Asian Institute of Technology Thailand	Energy	Rank 1,129
48	79,799	VC Visvanathan, C.	Mahidol University	Environmental Sciences	Rank 638
49	80,418	SS Soponronnarit, Somchart	King Mongkut's University of Technology Thonburi	Food Science	Rank 461
50	81,560	LV Lohsiriwat, Varut	Siriraj Hospital	Surgery	Rank 686
51	81,587	WS Whitehead, Stephen S.	Queen Sirikit National Institute of Child Health	Virology	Rank 608
52	83,777	BI Baird, Ian G.	Chiang Mai University	Cultural Studies	Rank 16
53	84,316	BR Bhidayasiri, Roongroj	Academy of Science	Neurology & Neurosurgery	Rank 5,330
54	86,128	CJ Claude, Julien	Chulalongkorn University	Physiology	Rank 371
55	86,705	MG Moschis, George P.	College of Management Mahidol University	Marketing	Rank 239
56	87,483	WM Wanapat, M.	Khon Kaen University	Dairy & Animal Science	Rank 210
57	88,172	DG del Giudice, Giuseppe	BioNet-Asia Co., Ltd.	Immunology	Rank 2,346
58	89,298	PS Phanichphant, Sukon	Chiang Mai University	Materials	Rank 1,240
59	91,911	SS Shrestha, Sangam L.	Asian Institute of Technology Thailand	Environmental Engineering	Rank 435
60	93,438	LP Lumbiganon, Pisake	Faculty of Medicine, Khon Kaen University	General & Internal Medicine	Rank 1,157
61	93,656	AE Ashley, Elizabeth A.	Mahidol Oxford Tropical Medicine Research Unit	Microbiology	Rank 2,318
62	93,838	MN Makul, Natt	Phranakhon Rajabhat University	Building & Construction	Rank 265
63	94,111	AP Aramwit, Pornanong	Chulalongkorn University	Pharmacology & Pharmacy	Rank 830
64	94,223	SV Sitprija, Visith	Thai Red Cross Agency	General & Internal Medicine	Rank 1,166
65	96,524	WT Witoon, Thongthai	Kasetsart University	Energy	Rank 1,417
66	97,195	DS Devahastin, Sakamon	King Mongkut's University of Technology Thonburi	Food Science	Rank 576
67	101,534	RS Rangappa, Sanjay Mavinkere	King Mongkut's University of Technology North Bangkok	Polymers	Rank 902
68	102,094	NI Ngamroo, Issarachai	King Mongkut's Institute of Technology Ladkrabang	Energy	Rank 1,508
69	102,753	SU Siripatrawan, Ubonrat	Chulalongkorn University	Food Science	Rank 605
70	104,609	SD Smith, Duncan R.	Mahidol University	Virology	Rank 800
71	104,825	KS Kalayanarooj, Siripen	Queen Sirikit National Institute of Child Health	Tropical Medicine	Rank 208
72	106,781	KO Koul, Opender	Kasetsart University	Entomology	Rank 295
73	106,918	WH Wilde, Henry	Faculty of Medicine, Chulalongkorn University	General & Internal Medicine	Rank 1,330
74	107,898	FS Fucharoen, Suthat	Institute of Molecular Biosciences, Mahidol University	Immunology	Rank 2,799
75	108,762	TH Thiravat Hemachudha, Thiravat	Rangsit University	Neurology & Neurosurgery	Rank 6,664
76	113,527	WC Wongsrichanalai, Chansuda	Independent consultant	Tropical Medicine	Rank 229
77	114,767	CB Cooper, Ben S.	Mahidol Oxford Tropical Medicine Research Unit	Microbiology	Rank 2,840
78	115,284	DP Dijkstra, Pieter Ubele	Siriraj Hospital	Rehabilitation	Rank 243
79	115,780	TV Thamlikitkul, Visanu	Siriraj Hospital	Microbiology	Rank 2,862
80	118,077	TW Tangsrirat, Worapong	King Mongkut's Institute of Technology Ladkrabang	Electrical & Electronic Engineering	Rank 338
81	118,554	SA Sirivat, Anuvat	Chulalongkorn University	Polymers	Rank 1,071
82	118,654	CA Chaipanich, Arnon	Chiang Mai University	Applied Physics	Rank 2,994
83	119,890	CN Chattipakorn, Nipon	Chiang Mai University	Cardiovascular System & Hematology	Rank 3,724
84	120,218	LJ Limtrakul, Jumras P.	Vidyasirimedhi Institute of Science and Technology	Chemical Physics	Rank 2,140
85	120,952	RR Rai, Rajesh Kumar	Mahidol University	General & Internal Medicine	Rank 1,512
86	121,025	IM Isobe, Minoru	Laboratory of Organic Synthesis	Organic Chemistry	Rank 2,050
87	121,746	BS Blacksell, Stuart D.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 249
88	121,804	RP Ratanadecho, Phadungsak	Thammasat University	Mechanical Engineering & Transports	Rank 886
89	122,481	MR McGready, R. M.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 251
90	122,610	FS Fujii, Syuji	Chulalongkorn University	Polymers	Rank 1,101
91	122,612	SA Sumalee, Agachai	Chulalongkorn University	Logistics & Transportation	Rank 215
92	122,914	KS Kulprathipanja, Santi	Chulalongkorn University	Chemical Engineering	Rank 595
93	125,933	LK Likhitwitayawuid, Kittisak	Chulalongkorn University	Medicinal & Biomolecular Chemistry	Rank 438
94	126,042	BD Bergado, Dennes Taganajan	Asian Institute of Technology Thailand	Geological & Geomatics Engineering	Rank 670
95	126,864	RG Rajchakit, G.	Maejo University	Applied Mathematics	Rank 280
96	126,894	SS Sirisinha, Stitaya	Faculty of Science, Mahidol University	Tropical Medicine	Rank 266
97	127,289	VT Vilaivan, Tirayut	Chulalongkorn University	Organic Chemistry	Rank 2,155
98	127,653	NY Nawa, Yukifumi	Faculty of Medicine, Khon Kaen University	Mycology & Parasitology	Rank 261
99	128,915	KE Konishi, Eiji	Faculty of Tropical Medicine, Mahidol University	Virology	Rank 1,029
100	129,686	SP Sukontasukkul, Piti	King Mongkut's University of Technology North Bangkok	Building & Construction	Rank 392
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You are seeing the first 100. 243 more are on the 2026 career-long list.

Ranks 101 to 343The whole list, not only the top 100.

Every year since 2020Single Year and Career Data.

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Countries with a similar count

Career-long list2026

United Arab Emirates470 scientists

Mexico461 scientists

Hungary441 scientists

Pakistan321 scientists

Argentina279 scientists

Romania253 scientists

Explore other countries

Career-long list2026

Singapore1,154 scientists

Malaysia515 scientists

Vietnam121 scientists

Indonesia70 scientists

Philippines51 scientists

Brunei21 scientists

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Frequently asked questions

How many scientists from Thailand are in the 2026 Stanford Top 2% list?

508 scientists affiliated with Thailand are on the 2026 single-year list, and 343 are on the career-long list.

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

On the 2026 career-long list, Chulalongkorn University has the most listed scientists from Thailand, with 52. It is followed by Chiang Mai University with 22.

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 343 in 2026, a change of +152.2%.

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.