Thailand's Top 2% Scientists 2025

Thailand has 454 scientists on the 2025 single-year Top 2% list, up 15.8% from 392 in 2024. That places Thailand 41st in the world by number of listed scientists. Chulalongkorn University has the most listed scientists (48), followed by Chiang Mai University (40).

Single Year

454

+62 (+15.8%) vs 2024

Career Data

302

+52 (+20.8%) vs 2024

World rank by count

#41

No change vs 2024

Institutes

+22 (+33.8%) vs 2024

Scientists in Thailand on the list, by year

The single-year count has more than doubled since 2020.

Single-year list, change on the previous year

2021+40.6%

2022+14.1%

2023+13.7%

2024+15.0%

2025+15.8%

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

Single-year list2025

Show the list

All 454 scientists

Single-year list2025

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	668	HP Hallinger, Philip	Mahidol University	Education	Rank 9
2	1,069	SS Siengchin, Suchart	King Mongkut's University of Technology North Bangkok	Polymers	Rank 9
3	1,299	WN White, Nicholas J.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 2
4	1,450	HK Hyde, Kevin D.	Mae Fah Luang University	Mycology & Parasitology	Rank 2
5	5,890	MC Morley, Christopher Keith	PTT Exploration and Production Public Company Limited	Geochemistry & Geophysics	Rank 78
6	6,157	CP Chindaprasirt, Prinya	Khon Kaen University	Building & Construction	Rank 49
7	6,930	RS Rangappa, Sanjay Mavinkere	King Mongkut's University of Technology North Bangkok	Polymers	Rank 39
8	8,403	BS Benjakul, Soottawat	Prince of Songkla University	Food Science	Rank 71
9	9,270	CP Charoensukmongkol, Peerayuth	National Institute of Development Administration	Business & Management	Rank 276
10	10,112	JK Jermsittiparsert, Kittisak	Metharath University	Business & Management	Rank 299
11	11,089	LS Lynch, Stanley P.	Chulalongkorn University	Materials	Rank 206
12	11,192	PP Promvonge, Pongjet	King Mongkut's Institute of Technology Ladkrabang	Mechanical Engineering & Transports	Rank 107
13	11,928	HS Horpibulsuk, S.	Suranaree University of Technology	Geological & Geomatics Engineering	Rank 129
14	12,402	WS Wongwises, Somchai	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 123
15	14,672	AA Anal, Anil Kumar	Asian Institute of Technology Thailand	Food Science	Rank 136
16	14,696	Makul, Natt	Phranakhon Rajabhat University	Building & Construction	Rank 114
17	15,317	NP Naphon, Paisan	Srinakharinwirot University	Mechanical Engineering & Transports	Rank 142
18	15,876	HS Horike, Satoshi	Vidyasirimedhi Institute of Science and Technology	Organic Chemistry	Rank 192
19	16,127	GS Gheewala, Shabbir Hussaini	King Mongkut's University of Technology Thonburi	Environmental Sciences	Rank 362
20	19,349	KP Kumam, Poom	King Mongkut's University of Technology Thonburi	Applied Mathematics	Rank 56
21	20,970	WJ Warren, John Keith	Chulalongkorn University	Geology	Rank 26
22	23,306	VD Van Doan, Hien V.	Chiang Mai University	Fisheries	Rank 35
23	24,912	ES Eiamsa-ard, Smith	Mahanakorn University of Technology	Mechanical Engineering & Transports	Rank 244
24	25,265	TV Taecharungroj, Viriya	Mahidol University	Urban & Regional Planning	Rank 87
25	25,440	SR Sothornvit, Rungsinee	Kasetsart University, Kamphaeng Saen Campus	Food Science	Rank 247
26	25,467	SS Shrestha, Sangam L.	Asian Institute of Technology Thailand	Environmental Engineering	Rank 120
27	29,473	DS Dhakal, Shobhakar	Asian Institute of Technology Thailand	Energy	Rank 801
28	29,790	FT Flegel, T. W.	Thailand National Center for Genetic Engineering and Biotechnology	Fisheries	Rank 50
29	30,340	AS Adisakwattana, Sirichai	Chulalongkorn University	Food Science	Rank 312
30	31,634	TV Thongboonkerd, Visith	Siriraj Hospital	Biochemistry & Molecular Biology	Rank 491
31	33,101	WT Witoon, Thongthai	Kasetsart University	Energy	Rank 910
32	33,581	PP Patterson, Paul G.	Chiang Mai University	Marketing	Rank 213
33	33,915	AP Aramwit, Pornanong	Academy of Science	Pharmacology & Pharmacy	Rank 171
34	34,967	QJ Qin, Jiaqian	Chulalongkorn University	Materials	Rank 699
35	35,037	RR Ritchie, Raymond J.	Prince of Songkla University	Plant Biology & Botany	Rank 482
36	36,367	MS Mekruksavanich, Sakorn	University of Phayao	Artificial Intelligence & Image Processing	Rank 1,590
37	36,422	SP Sukontasukkul, Piti	King Mongkut's University of Technology North Bangkok	Building & Construction	Rank 279
38	38,374	LV Lohsiriwat, Varut	Siriraj Hospital	Surgery	Rank 119
39	38,575	RR Rai, Rajesh Kumar	Mahidol University	General & Internal Medicine	Rank 547
40	40,480	DA Dondorp, A. M.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 33
41	42,319	LS Likitlersuang, Suched	Chulalongkorn University	Geological & Geomatics Engineering	Rank 436
42	42,939	PS Phanichphant, Sukon	Chiang Mai University	Materials	Rank 867
43	46,682	BS Babel, Sandhya	Sirindhorn International Institute of Technology Thammasat University	Environmental Sciences	Rank 1,024
44	47,017	SU Siripatrawan, Ubonrat	Chulalongkorn University	Food Science	Rank 519
45	49,218	SP Sriamornsak, Pornsak	Silpakorn University	Pharmacology & Pharmacy	Rank 276
46	49,736	RH Reinders, Hayo	King Mongkut's University of Technology Thonburi	Languages & Linguistics	Rank 244
47	49,743	SB Sripa, Banchob B.	Faculty of Medicine, Khon Kaen University	Mycology & Parasitology	Rank 56
48	51,269	HN Harnkarnsujarit, Nathdanai	Kasetsart University	Food Science	Rank 575
49	52,180	CN Chattipakorn, Nipon	Chiang Mai University	Cardiovascular System & Hematology	Rank 1,387
50	52,663	PS Pengpid, Supa	Mahidol University	Public Health	Rank 508
51	52,813	KS Keawsawasvong, Suraparb	Thammasat University	Geological & Geomatics Engineering	Rank 556
52	53,663	FK Fuchs, Kevin	Prince of Songkla University	Education	Rank 692
53	54,272	HK Hantanasirisakul, Kanit	Vidyasirimedhi Institute of Science and Technology	Nanoscience & Nanotechnology	Rank 2,071
54	55,285	Kantabutra, Sooksan	College of Management Mahidol University	Business & Management	Rank 1,341
55	55,395	LL Lebel, Louis	Chiang Mai University	Environmental Sciences	Rank 1,221
56	56,639	BS Boon-Itt, Sakun	Thammasat University	Business & Management	Rank 1,369
57	57,113	TS Tanpichai, Supachok	King Mongkut's University of Technology Thonburi	Polymers	Rank 522
58	58,387	RP Rachtanapun, Pornchai	Chiang Mai University	Polymers	Rank 532
59	60,057	CM Chaijan, Manat	Walailak University	Food Science	Rank 673
60	60,578	DP Dung, Phanminh	Asian Institute of Technology Thailand	Artificial Intelligence & Image Processing	Rank 2,569
61	62,701	PD Pal, Debajyoti	King Mongkut’s Institute of Technology Thonburi	Networking & Telecommunications	Rank 701
62	62,930	TP Thounthong, P.	King Mongkut's University of Technology North Bangkok	Electrical & Electronic Engineering	Rank 216
63	63,865	NF Nosten, François Henri	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 55
64	63,976	DS Devahastin, Sakamon	King Mongkut's University of Technology Thonburi	Food Science	Rank 721
65	65,630	WM Wanapat, M.	Khon Kaen University	Dairy & Animal Science	Rank 148
66	66,069	AV A, Vinod	King Mongkut's University of Technology North Bangkok	Polymers	Rank 608
67	66,903	AI Antoniadis, Ignatios	Chulalongkorn University	Nuclear & Particle Physics	Rank 871
68	67,048	SB Sivamaruthi, Bhagavathi Sundaram	Chiang Mai University	Pharmacology & Pharmacy	Rank 387
69	67,801	LD Limmathurotsakul, Direk	Faculty of Tropical Medicine, Mahidol University	Microbiology	Rank 1,305
70	68,328	VC Visvanathan, C.	Mahidol University	Environmental Sciences	Rank 1,552
71	68,472	SP Supaphol, Pitt	Chulalongkorn University	Polymers	Rank 632
72	69,505	VR Vijay, Raghunathan	King Mongkut's University of Technology North Bangkok	Polymers	Rank 638
73	69,532	CS Chattipakorn, Siriporn Chaisin	Chiang Mai University	Biochemistry & Molecular Biology	Rank 1,117
74	69,853	WS Wijitkosum, Saowanee	Chulalongkorn University	Civil Engineering	Rank 311
75	69,860	TV Tangcharoensathien, Viroj	International Health Policy Program, Thailand	General & Internal Medicine	Rank 934
76	70,330	KO Koul, Opender	Kasetsart University	Entomology	Rank 125
77	71,544	VW Viriyasitavat, Wattana Golf	Chulalongkorn Business School	Artificial Intelligence & Image Processing	Rank 3,031
78	72,332	Sangkham, Sarawut	University of Phayao	Environmental Sciences	Rank 1,656
79	72,815	NP Newton, Paul N.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 66
80	73,122	CC Chaiyasut, Chaiyavat	Chiang Mai University	Pharmacology & Pharmacy	Rank 438
81	75,618	RS Rawdkuen, Saroat	Mae Fah Luang University	Food Science	Rank 880
82	76,888	OM Ogawa, Makoto	Vidyasirimedhi Institute of Science and Technology	Chemical Physics	Rank 929
83	77,058	SV Sata, Vanchai	Khon Kaen University	Building & Construction	Rank 678
84	77,696	NC Nantasenamat, Chanin	Mahidol University	Medicinal & Biomolecular Chemistry	Rank 267
85	78,059	RP Ratanadecho, Phadungsak	Thammasat University	Mechanical Engineering & Transports	Rank 762
86	78,973	KJ Kaewkhao, Jakrapong	Nakhon Pathom Rajabhat University	Materials	Rank 1,742
87	79,848	CN Charoenngam, Nipith	Siriraj Hospital	Endocrinology & Metabolism	Rank 1,120
88	82,579	BR Bhidayasiri, Roongroj	King Chulalongkorn Memorial Hospital	Neurology & Neurosurgery	Rank 3,558
89	83,641	MS Maensiri, Santi	Suranaree University of Technology	Applied Physics	Rank 1,582
90	83,813	PA Phuruangrat, Anukorn	Prince of Songkla University	Materials	Rank 1,847
91	84,775	GS Ghosh, Sougata	Kasetsart University	Nanoscience & Nanotechnology	Rank 3,319
92	85,416	QD Quicke, Donald L.J.	Chulalongkorn University	Evolutionary Biology	Rank 464
93	85,959	DN Day, Nicholas P.J.	Faculty of Tropical Medicine, Mahidol University	Microbiology	Rank 1,638
94	86,162	Fakfare, Pipatpong	Bangkok University	Sport, Leisure & Tourism	Rank 408
95	86,949	TS Turale, Sue	International Nursing Review	Nursing	Rank 187
96	88,501	SN Sombatsompop, Narongrit	King Mongkut's University of Technology Thonburi	Polymers	Rank 854
97	89,686	JR Jayawardena, Ruvishika Shehali	Mae Fah Luang University	Mycology & Parasitology	Rank 106
98	90,982	CA Chaipanich, Arnon	Chiang Mai University	Applied Physics	Rank 1,714
99	91,069	SN Suwannarach, Nakarin	Chiang Mai University	Microbiology	Rank 1,727
100	91,481	YP Yong Poovorawan, Yong	Faculty of Medicine, Chulalongkorn University	Virology	Rank 330
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You are seeing the first 100. 354 more are on the 2025 single-year list.

Ranks 101 to 454The whole list, not only the top 100.

Every year since 2020Single Year and Career Data.

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Countries with a similar count

Single-year list2025

Malaysia879 scientists

United Arab Emirates663 scientists

Czech Republic538 scientists

Mexico415 scientists

Hungary345 scientists

Romania294 scientists

Explore other countries

Single-year list2025

Singapore1,362 scientists

Vietnam239 scientists

Indonesia209 scientists

Philippines69 scientists

Brunei35 scientists

China31,697 scientists

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Frequently asked questions

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

454 scientists affiliated with Thailand are on the 2025 single-year list, and 302 are on the career-long list.

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

On the 2025 single-year list, Chulalongkorn University has the most listed scientists from Thailand, with 48. It is followed by Chiang Mai University with 40.

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

On the single-year list, Thailand went from 187 scientists in 2020 to 454 in 2025, a change of +142.8%.

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.