Thailand's Top 2% Scientists 2021

Thailand has 263 scientists on the 2021 single-year Top 2% list, up 40.6% from 187 in 2020. That places Thailand 43rd in the world by number of listed scientists, down 1 place. Chulalongkorn University has the most listed scientists (33), followed by Chiang Mai University (26).

Single Year

263

+76 (+40.6%) vs 2020

Career Data

191

+55 (+40.4%) vs 2020

World rank by count

#43

down 1 place vs 2020

Institutes

+13 (+25.5%) vs 2020

Scientists in Thailand on the list, by year

The single-year count has grown 41% 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 list2021

Show the list

All 263 scientists

Single-year list2021

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	4,610	HK Hyde, Kevin D.	Mae Fah Luang University	Mycology & Parasitology	Rank 5
2	5,814	MC Morley, C. K.	PTT Exploration and Production Public Company Limited	Geochemistry & Geophysics	Rank 94
3	7,240	PP Promvonge, Pongjet	King Mongkut's Institute of Technology Ladkrabang	Mechanical Engineering & Transports	Rank 72
4	9,275	ES Eiamsa-Ard, S.	Mahanakorn University of Technology	Mechanical Engineering & Transports	Rank 92
5	9,403	CP Chindaprasirt, Prinya	Khon Kaen University	Building & Construction	Rank 51
6	9,748	WS Wongwises, Somchai	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 98
7	10,340	NP Naphon, Paisarn	Srinakharinwirot University	Mechanical Engineering & Transports	Rank 104
8	12,220	BS Benjakul, Soottawat	Prince of Songkla University	Food Science	Rank 68
9	15,673	HS Horpibulsuk, Suksun	Suranaree University of Technology	Geological & Geomatics Engineering	Rank 129
10	17,775	VD van Doorn, Wouter G.	Kasetsart University, Kamphaeng Saen Campus	Plant Biology & Botany	Rank 219
11	21,871	WJ Warren, J.	Chulalongkorn University	Geology	Rank 33
12	22,323	PP Patterson, Paul G.	UNSW Business School	Marketing	Rank 117
13	25,240	FT Flegel, Timothy W.	Mahidol University	Fisheries	Rank 48
14	26,179	MS Morand, Serge	Kasetsart University	Mycology & Parasitology	Rank 36
15	28,920	LL Lebel, Louis	Chiang Mai University	Environmental Sciences	Rank 345
16	29,544	AS Adisakwattana, Sirichai	Chulalongkorn University	Food Science	Rank 194
17	30,033	SP Supaphol, Pitt	Chulalongkorn University	Polymers	Rank 264
18	33,029	MA Mostafaeipour, Ali	Prince of Songkla University	Energy	Rank 702
19	33,327	SR Sothornvit, Rungsinee	Kasetsart University, Kamphaeng Saen Campus	Food Science	Rank 217
20	35,802	NF Nosten, François	Shoklo Malaria Research Unit	Tropical Medicine	Rank 47
21	38,586	KP Kumam, Poom	King Mongkut's University of Technology Thonburi	Applied Mathematics	Rank 114
22	38,715	SP Sriamornsak, Pornsak	Silpakorn University	Pharmacology & Pharmacy	Rank 210
23	40,318	RR Ritchie, Raymond J.	Prince of Songkla University	Plant Biology & Botany	Rank 584
24	40,941	CP Cholamjiak, Prasit	University of Phayao	General Mathematics	Rank 213
25	41,904	WD Wichelns, Dennis	Stockholm Environment Institute	Environmental Engineering	Rank 237
26	44,337	SR Shankar, Ravi	Indian Institute of Technology Delhi	Business & Management	Rank 926
27	45,018	TV Thongboonkerd, Visith	Siriraj Hospital	Biochemistry & Molecular Biology	Rank 1,031
28	45,022	DS Dowell, Scott F.	Thailand Ministry of Public Health	Microbiology	Rank 1,031
29	46,156	AP Aramwit, Pornanong	Chulalongkorn University	Pharmacology & Pharmacy	Rank 270
30	46,356	SM Sanjay, M. R.	King Mongkut's University of Technology North Bangkok	Polymers	Rank 405
31	46,800	WT Witoon, Thongthai	Kasetsart University	Energy	Rank 977
32	50,744	LV Lohsiriwat, Varut	Siriraj Hospital	General & Internal Medicine	Rank 601
33	51,379	DS Dhakal, Shobhakar	Asian Institute of Technology Thailand	Energy	Rank 1,077
34	51,388	ZA Ziegler, Alan D.	Maejo University	Environmental Engineering	Rank 321
35	51,590	AA Anuwong, Angkoon	Police General Hospital	Surgery	Rank 243
36	52,091	CP Charoensukmongkol, Peerayuth	Thailand National Institute of Development Administration	Business & Management	Rank 1,075
37	52,257	SU Siripatrawan, Ubonrat	Chulalongkorn University	Food Science	Rank 373
38	52,521	AA Anal, Anil Kumar	Asian Institute of Technology Thailand	Food Science	Rank 378
39	53,389	SS Siengchin, Suchart	King Mongkut's University of Technology North Bangkok	Polymers	Rank 488
40	53,753	DP Dung, Phan Minh	Asian Institute of Technology Thailand	Artificial Intelligence & Image Processing	Rank 1,243
41	54,623	CA Chaipanich, Arnon	Chiang Mai University	Applied Physics	Rank 1,108
42	55,828	KO Kim Oanh, Nguyen Thi	Asian Institute of Technology Thailand	Meteorology & Atmospheric Sciences	Rank 1,071
43	56,317	NI Ngamroo, Issarachai	King Mongkut's Institute of Technology Ladkrabang	Energy	Rank 1,188
44	56,349	QD Quicke, Donald L.J.	Chulalongkorn University	Evolutionary Biology	Rank 470
45	60,178	GS Gheewala, Shabbir H.	King Mongkut's University of Technology Thonburi	Environmental Sciences	Rank 744
46	60,274	Thounthong, Phatiphat	King Mongkut's University of Technology North Bangkok	Electrical & Electronic Engineering	Rank 164
47	61,827	MS Maensiri, Santi	Suranaree University of Technology	Applied Physics	Rank 1,256
48	64,372	RB Rittichainuwat, Bongkosh	Siam University	Sport, Leisure & Tourism	Rank 253
49	65,822	SB Sripa, Banchob	Khon Kaen University	Mycology & Parasitology	Rank 89
50	66,373	SS Suantai, Suthep	Chiang Mai University	General Mathematics	Rank 353
51	68,646	WM Wanapat, Metha	Khon Kaen University	Dairy & Animal Science	Rank 168
52	68,885	VC Visvanathan, C.	Asian Institute of Technology Thailand	Environmental Sciences	Rank 866
53	69,951	RG Rajchakit, G.	Maejo University	General Mathematics	Rank 381
54	70,002	SS Shrestha, Sangam	Asian Institute of Technology Thailand	Environmental Engineering	Rank 437
55	73,352	MN Makul, Natt	Phranakhon Rajabhat University	Building & Construction	Rank 385
56	73,381	BR Bhidayasiri, Roongroj	King Chulalongkorn Memorial Hospital	Neurology & Neurosurgery	Rank 3,824
57	74,774	CO Chailapakul, Orawon	Chulalongkorn University	Analytical Chemistry	Rank 501
58	75,019	JC Jaturapitakkul, Chai	King Mongkut's University of Technology Thonburi	Building & Construction	Rank 389
59	75,968	BT Bourtoom, Thawien	Prince of Songkla University	Food Science	Rank 579
60	77,442	PT Phenrat, Tanapon	Naresuan University	Environmental Sciences	Rank 990
61	77,551	BE Buffetaut, Eric	Mahasarakham University	Paleontology	Rank 269
62	78,738	LP Lumbiganon, Pisake	Khon Kaen University	General & Internal Medicine	Rank 870
63	79,170	SP Sukontasukkul, Piti	King Mongkut's University of Technology North Bangkok	Building & Construction	Rank 408
64	80,534	KJ Kaewkhao, J.	Nakhon Pathom Rajabhat University	Materials	Rank 1,494
65	81,174	OM Ogawa, Makoto	Vidyasirimedhi Institute of Science and Technology	Chemical Physics	Rank 1,208
66	82,056	BS Babel, Sandhya	Sirindhorn International Institute of Technology, Thammasat University	Environmental Sciences	Rank 1,059
67	82,589	PA Phuruangrat, Anukorn	Prince of Songkla University	Materials	Rank 1,544
68	83,883	PS Phanichphant, Sukon	Chiang Mai University	Materials	Rank 1,573
69	84,289	PS Pengpid, Supa	Mahidol University	Public Health	Rank 899
70	85,382	VW Visessanguan, Wonnop	Thailand National Center for Genetic Engineering and Biotechnology	Food Science	Rank 667
71	87,570	RP Rattanadecho, Phadungsak	Thammasat University	Mechanical Engineering & Transports	Rank 811
72	88,508	SS Soponronnarit, Somchart	King Mongkut's University of Technology Thonburi	Food Science	Rank 702
73	90,280	LD Limmathurotsakul, Direk	Faculty of Tropical Medicine, Mahidol University	Microbiology	Rank 2,005
74	90,588	VS von Seidlein, Lorenz	Mahidol University	Tropical Medicine	Rank 141
75	91,016	BD Bergado, Dennes T.	Asian Institute of Technology Thailand	Geological & Geomatics Engineering	Rank 714
76	91,427	DS Devahastin, Sakamon	King Mongkut's University of Technology Thonburi	Food Science	Rank 721
77	91,544	MJ McNeely, Jeffrey A.	Society for Conservation Biology Asia Section	Ecology	Rank 1,765
78	91,756	ER El-Nabulsi, Rami Ahmad	Chiang Mai University	Nuclear & Particle Physics	Rank 1,161
79	92,159	TA Tassanakajon, Anchalee	Chulalongkorn University	Immunology	Rank 2,041
80	93,319	SN Sombatsompop, Narongrit	King Mongkut's University of Technology Thonburi	Polymers	Rank 892
81	93,729	BS Boon-itt, Sakun	Thammasat University	Operations Research	Rank 492
82	94,915	SA Sumalee, A.	Chulalongkorn University	Logistics & Transportation	Rank 293
83	95,793	BM Babel, Mukand S.	Asian Institute of Technology Thailand	Environmental Engineering	Rank 626
84	96,325	TT Thongtem, Titipun	Chiang Mai University	Materials	Rank 1,830
85	96,840	LN Laosiripojana, N.	King Mongkut's University of Technology Thonburi	Energy	Rank 2,072
86	97,531	SV Sata, Vanchai	Khon Kaen University	Building & Construction	Rank 510
87	98,919	IM Imwong, Mallika	Mahidol University	Tropical Medicine	Rank 161
88	100,481	KS Kalayanarooj, Siripen	Queen Sirikit National Institute of Child Health	Tropical Medicine	Rank 165
89	102,714	TA Thakkinstian, Ammarin	Faculty of Medicine Ramathibodi Hospital, Mahidol University	General & Internal Medicine	Rank 1,079
90	102,737	VD Van Doan, Hien	Chiang Mai University	Fisheries	Rank 232
91	102,909	AW Aekplakorn, Wichai	Ramathibodi Hospital	General & Internal Medicine	Rank 1,084
92	103,081	YK Yagi, Kazuyuki	King Mongkut's University of Technology Thonburi	Agronomy & Agriculture	Rank 699
93	105,049	GM Gleeson, M. Paul	King Mongkut's Institute of Technology Ladkrabang	Medicinal & Biomolecular Chemistry	Rank 342
94	108,262	TC Thianpong, C.	King Mongkut's Institute of Technology Ladkrabang	Mechanical Engineering & Transports	Rank 979
95	108,302	CN Chattipakorn, Nipon	Chiang Mai University	Cardiovascular System & Hematology	Rank 2,745
96	113,202	TV Tangcharoensathien, Viroj	Thailand Ministry of Public Health	Health Policy & Services	Rank 313
97	113,363	SM Sawangphruk, Montree	Vidyasirimedhi Institute of Science and Technology	Energy	Rank 2,551
98	115,331	AS Assabumrungrat, Suttichai	Chulalongkorn University	Chemical Engineering	Rank 851
99	116,688	PM Pipattanasomporn, Manisa	Chulalongkorn University	Energy	Rank 2,627
100	117,160	NK Nademanee, Koonlawee	Chulalongkorn University	Cardiovascular System & Hematology	Rank 2,957
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You are seeing the first 100. 163 more are on the 2021 single-year list.

Ranks 101 to 263The 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 list2021

Mexico364 scientistsin 2021

Hungary285 scientistsin 2021

United Arab Emirates274 scientistsin 2021

Chile222 scientistsin 2021

Romania190 scientistsin 2021

Argentina178 scientistsin 2021

Explore other countries

Single-year list2021

Singapore1,130 scientistsin 2021

Malaysia549 scientistsin 2021

Vietnam146 scientistsin 2021

Indonesia58 scientistsin 2021

Philippines35 scientistsin 2021

China16,611 scientistsin 2021

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Frequently asked questions

How many scientists from Thailand are in the 2021 Stanford Top 2% list?

263 scientists affiliated with Thailand are on the 2021 single-year list, and 191 are on the career-long list.

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

On the 2021 single-year list, Chulalongkorn University has the most listed scientists from Thailand, with 33. It is followed by Chiang Mai University with 26.

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 263 in 2021, a change of +40.6%.

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.