Thailand's Top 2% Scientists 2026

Thailand has 508 scientists on the 2026 single-year Top 2% list, up 11.9% from 454 in 2025. That places Thailand 41st in the world by number of listed scientists. Chulalongkorn University has the most listed scientists (66), followed by Chiang Mai University (44).

Single Year

508

+54 (+11.9%) vs 2025

Career Data

343

+41 (+13.6%) vs 2025

World rank by count

#41

No change vs 2025

Institutes

+6 (+6.9%) vs 2025

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%

2026+11.9%

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

Single-year list2026

Show the list

All 508 scientists

Single-year list2026

Showing the 2026 single-year list. Looking for career rankings? See the career-long 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	698	SS Siengchin, Suchart	King Mongkut's University of Technology North Bangkok	Polymers	Rank 4
2	763	HP Hallinger, Philip	Mahidol University	Education	Rank 15
3	917	HK Hyde, Kevin D.	Mae Fah Luang University	Mycology & Parasitology	Rank 2
4	1,427	WN White, Nicholas J.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 2
5	6,896	RS Rangappa, Sanjay Mavinkere	King Mongkut's University of Technology North Bangkok	Polymers	Rank 36
6	7,092	CP Chindaprasirt, Prinya	Khon Kaen University	Building & Construction	Rank 61
7	9,206	MC Morley, Christopher Keith	PTT Exploration and Production Public Company Limited	Geochemistry & Geophysics	Rank 119
8	9,807	PP Promvonge, Pongjet	King Mongkut's Institute of Technology Ladkrabang	Mechanical Engineering & Transports	Rank 83
9	10,496	BS Benjakul, Soottawat	Prince of Songkla University	Food Science	Rank 101
10	11,197	MN Makul, Natt	Phranakhon Rajabhat University	Building & Construction	Rank 86
11	11,259	CV Chaudhary, Vishal	Mahidol University	Energy	Rank 295
12	11,866	HS Horpibulsuk, S.	Suranaree University of Technology	Geological & Geomatics Engineering	Rank 129
13	14,643	CP Charoensukmongkol, Peerayuth	National Institute of Development Administration	Business & Management	Rank 435
14	14,656	GS Gheewala, Shabbir Hussaini	King Mongkut's University of Technology Thonburi	Environmental Sciences	Rank 320
15	14,728	TH Tanaka, Hirofumi	Chulalongkorn University	Cardiovascular System & Hematology	Rank 464
16	16,034	ES Eiamsa-ard, Smith	Mahanakorn University of Technology	Mechanical Engineering & Transports	Rank 136
17	16,544	JK Jermsittiparsert, Kittisak	Metharath University	Education	Rank 254
18	16,768	AA Anal, Anil Kumar	Asian Institute of Technology Thailand	Food Science	Rank 165
19	18,567	NP Naphon, Paisan	Srinakharinwirot University	Mechanical Engineering & Transports	Rank 163
20	19,087	WJ Warren, John Keith	Chulalongkorn University	Geology	Rank 20
21	20,196	WS Wongwises, Somchai	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 180
22	21,884	VD Van Doan, Hien V.	Chiang Mai University	Fisheries	Rank 31
23	24,248	FT Flegel, T. W.	Faculty of Science, Mahidol University	Fisheries	Rank 37
24	24,681	SM Schultz, Marcus Josephus Josephus	Mahidol Oxford Tropical Medicine Research Unit	Emergency & Critical Care Medicine	Rank 81
25	25,677	TV Taecharungroj, Viriya	Mahidol University	Urban & Regional Planning	Rank 83
26	27,490	KP Kumam, Poom	King Mongkut's University of Technology Thonburi	Applied Mathematics	Rank 82
27	28,264	SS Shrestha, Sangam L.	Asian Institute of Technology Thailand	Environmental Engineering	Rank 143
28	28,544	SR Sothornvit, Rungsinee	Kasetsart University, Kamphaeng Saen Campus	Food Science	Rank 323
29	29,298	TV Thongboonkerd, Visith	Siriraj Hospital	Biochemistry & Molecular Biology	Rank 418
30	29,348	AS Adisakwattana, Sirichai	Chulalongkorn University	Food Science	Rank 338
31	29,506	DS Dhakal, Shobhakar	Asian Institute of Technology Thailand	Energy	Rank 800
32	30,976	RR Rai, Rajesh Kumar	Mahidol University	General & Internal Medicine	Rank 493
33	33,054	QJ Qin, Jiaqian	Chulalongkorn University	Materials	Rank 668
34	33,273	AP Aramwit, Pornanong	Chulalongkorn University	Pharmacology & Pharmacy	Rank 177
35	33,358	MS Mekruksavanich, Sakorn	University of Phayao	Artificial Intelligence & Image Processing	Rank 1,622
36	34,044	NN Nirmal, Nilesh Prakash	Mahidol University	Food Science	Rank 404
37	34,609	WT Witoon, Thongthai	Kasetsart University	Energy	Rank 973
38	36,101	PL Prasittisopin, Lapyote	Chulalongkorn University	Building & Construction	Rank 308
39	37,456	TS Treepongkaruna, Sirimon	Sasin School of Management, Bangkok	Finance	Rank 165
40	37,825	LV Lohsiriwat, Varut	Siriraj Hospital	Surgery	Rank 105
41	37,842	SB Sivamaruthi, Bhagavathi Sundaram	Chiang Mai University	Pharmacology & Pharmacy	Rank 205
42	38,885	SU Siripatrawan, Ubonrat	Chulalongkorn University	Food Science	Rank 474
43	39,062	LS Likitlersuang, Suched	Chulalongkorn University	Geological & Geomatics Engineering	Rank 433
44	40,747	SP Sriamornsak, Pornsak	Silpakorn University	Pharmacology & Pharmacy	Rank 225
45	41,127	PS Pengpid, Supa	Mahidol University	Public Health	Rank 384
46	41,449	Kantabutra, Sooksan	College of Management Mahidol University	Business & Management	Rank 1,077
47	41,633	RH Reinders, Hayo	King Mongkut's University of Technology Thonburi	Languages & Linguistics	Rank 248
48	44,775	VR Vijay, Raghunathan	King Mongkut's University of Technology North Bangkok	Polymers	Rank 360
49	47,343	LL Lebel, Louis	Chiang Mai University	Environmental Sciences	Rank 1,042
50	48,529	BI Baird, Ian G.	Chiang Mai University	Cultural Studies	Rank 13
51	48,718	WM Wanapat, M.	Khon Kaen University	Dairy & Animal Science	Rank 111
52	50,033	SP Sukontasukkul, Piti	King Mongkut's University of Technology North Bangkok	Building & Construction	Rank 437
53	50,110	AT Amnuaylojaroen, Teerachai	University of Phayao	Meteorology & Atmospheric Sciences	Rank 952
54	50,574	CN Chattipakorn, Nipon	Chiang Mai University	Cardiovascular System & Hematology	Rank 1,367
55	51,004	DA Dondorp, A. M.	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 46
56	51,967	AE Ashley, Elizabeth A.	Mahidol Oxford Tropical Medicine Research Unit	Microbiology	Rank 996
57	52,153	KS Keawsawasvong, Suraparb	Thammasat University	Geological & Geomatics Engineering	Rank 573
58	52,370	RG Rajchakit, G.	Maejo University	Applied Mathematics	Rank 141
59	53,070	RR Ritchie, Raymond J.	Prince of Songkla University	Plant Biology & Botany	Rank 819
60	54,503	TP Thounthong, P.	King Mongkut's University of Technology North Bangkok	Electrical & Electronic Engineering	Rank 186
61	56,044	WS Wijitkosum, Saowanee	Chulalongkorn University	Environmental Sciences	Rank 1,240
62	56,302	BR Bhidayasiri, Roongroj	Academy of Science	Neurology & Neurosurgery	Rank 2,462
63	57,027	KA Khan, Arfat Ahmad	Khon Kaen University	Networking & Telecommunications	Rank 633
64	57,106	ML Makhloufi, Lahcene	Mae Fah Luang University	Business & Management	Rank 1,417
65	57,709	BS Babel, Sandhya	Sirindhorn International Institute of Technology Thammasat University	Environmental Sciences	Rank 1,276
66	57,906	HK Hantanasirisakul, Kanit	Vidyasirimedhi Institute of Science and Technology	Nanoscience & Nanotechnology	Rank 2,179
67	58,165	CM Chaijan, Manat	Walailak University	Food Science	Rank 732
68	59,239	PD Pal, Debajyoti	King Mongkut’s Institute of Technology Thonburi	Networking & Telecommunications	Rank 655
69	59,739	SM Sawangphruk, Montree	Vidyasirimedhi Institute of Science and Technology	Energy	Rank 1,766
70	60,155	PS Phanichphant, Sukon	Chiang Mai University	Materials	Rank 1,318
71	60,360	VW Viriyasitavat, Wattana Golf	Chulalongkorn Business School	Artificial Intelligence & Image Processing	Rank 2,814
72	60,451	DP Dung, Phanminh	Asian Institute of Technology Thailand	Artificial Intelligence & Image Processing	Rank 2,822
73	60,800	FK Fuchs, Kevin	Prince of Songkla University	Education	Rank 847
74	60,857	LD Limmathurotsakul, Direk	Faculty of Tropical Medicine, Mahidol University	Microbiology	Rank 1,172
75	60,984	SN Suwannarach, Nakarin	Chiang Mai University	Microbiology	Rank 1,175
76	61,322	Sangkham, Sarawut	University of Phayao	Environmental Sciences	Rank 1,371
77	61,708	RP Rachtanapun, Pornchai	Chiang Mai University	Polymers	Rank 540
78	61,756	CC Chaiyasut, Chaiyavat	Chiang Mai University	Pharmacology & Pharmacy	Rank 384
79	61,832	MR Marchant, Rob A.	Faculty of Environment and Resource Studies, Mahidol University	Ecology	Rank 1,208
80	62,630	KD Khan, Dolat N.	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 612
81	62,677	CS Chattipakorn, Siriporn Chaisin	Chiang Mai University	Neurology & Neurosurgery	Rank 2,713
82	62,742	TS Tanpichai, Supachok	King Mongkut's University of Technology Thonburi	Polymers	Rank 552
83	64,073	HN Harnkarnsujarit, Nathdanai	Kasetsart University	Food Science	Rank 811
84	64,348	CS Cinti, Stefano	Chulalongkorn University	Analytical Chemistry	Rank 363
85	65,605	RS Rawdkuen, Saroat	Mae Fah Luang University	Food Science	Rank 836
86	67,646	TV Tangcharoensathien, Viroj	International Health Policy Program	General & Internal Medicine	Rank 965
87	69,990	BS Boon-Itt, Sakun	Thammasat Business School	Business & Management	Rank 1,664
88	71,412	BD Bergado, Dennes Taganajan	Asian Institute of Technology Thailand	Geological & Geomatics Engineering	Rank 786
89	71,608	Fakfare, Pipatpong	Bangkok University	Sport, Leisure & Tourism	Rank 335
90	72,097	Srinivasan, Rajkumar	Chulalongkorn University	Polymers	Rank 646
91	72,333	DE Douglas, Evan J.	Sasin School of Management, Bangkok	Business & Management	Rank 1,710
92	72,377	SA Saeed, Anwar	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 693
93	75,036	PP Promoppatum, Patcharapit	King Mongkut's University of Technology Thonburi	Materials	Rank 1,696
94	75,097	KJ Kaewkhao, Jakrapong	Nakhon Pathom Rajabhat University	Materials	Rank 1,698
95	77,755	PM Pramanik, Malay Kumar	Asian Institute of Technology Thailand	Meteorology & Atmospheric Sciences	Rank 1,429
96	78,904	TS Turale, Sue	International Nursing Review	Nursing	Rank 184
97	79,568	JR Jayawardena, Ruvishika Shehali	Mae Fah Luang University	Mycology & Parasitology	Rank 95
98	81,338	JP Joyklad, Panuwat	Srinakharinwirot University	Building & Construction	Rank 740
99	81,389	DS Devahastin, Sakamon	King Mongkut's University of Technology Thonburi	Food Science	Rank 1,060
100	81,458	CB Cheirsilp, Benjamas	Prince of Songkla University	Biotechnology	Rank 286
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See all 508 scientists in Thailand

You are seeing the first 100. 408 more are on the 2026 single-year list.

Ranks 101 to 508The 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 list2026

Malaysia941 scientists

United Arab Emirates806 scientists

Czech Republic572 scientists

Mexico468 scientists

Hungary371 scientists

Bangladesh347 scientists

Explore other countries

Single-year list2026

Singapore1,461 scientists

Vietnam280 scientists

Indonesia272 scientists

Philippines74 scientists

Brunei39 scientists

China37,204 scientists

All countries on the world map

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 single-year list, Chulalongkorn University has the most listed scientists from Thailand, with 66. It is followed by Chiang Mai University with 44.

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 508 in 2026, a change of +171.7%.

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.