Thailand's Top 2% Scientists 2023

Thailand has 341 scientists on the 2023 single-year Top 2% list, up 13.7% from 300 in 2022. That places Thailand 42nd in the world by number of listed scientists. Chulalongkorn University has the most listed scientists (37), followed by Chiang Mai University (28).

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

+7 (+9.7%) vs 2022

Scientists in Thailand on the list, by year

The single-year count has grown 82% 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 list2023

Show the list

All 341 scientists

Single-year 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	1,083	MM Maes, Michael	Faculty of Medicine, Chulalongkorn University	Psychiatry	Rank 23
2	2,747	HK Hyde, Kevin D.	Mae Fah Luang University	Mycology & Parasitology	Rank 3
3	5,177	PK Peltzer, Karl	Mahidol University	Public Health	Rank 58
4	5,756	CP Chindaprasirt, Prinya	Khon Kaen University	Building & Construction	Rank 39
5	5,994	MC Morley, C. K.	PTT Exploration and Production Public Company Limited	Geochemistry & Geophysics	Rank 78
6	9,194	WS Wongwises, Somchai	Thailand National Science and Technology Development Agency	Mechanical Engineering & Transports	Rank 85
7	9,695	PP Promvonge, Pongjet	King Mongkut's Institute of Technology Ladkrabang	Mechanical Engineering & Transports	Rank 91
8	11,502	NP Naphon, Paisarn	Srinakharinwirot University	Mechanical Engineering & Transports	Rank 108
9	13,229	SS Siengchin, Suchart	King Mongkut's University of Technology North Bangkok	Polymers	Rank 88
10	13,397	SM Sanjay, M. R.	King Mongkut's University of Technology North Bangkok	Polymers	Rank 89
11	14,151	ES Eiamsa-ard, Smith	Mahanakorn University of Technology	Mechanical Engineering & Transports	Rank 137
12	14,578	MO Mahian, Omid	King Mongkut's University of Technology Thonburi	Mechanical Engineering & Transports	Rank 141
13	16,300	HS Horpibulsuk, Suksun	Suranaree University of Technology	Geological & Geomatics Engineering	Rank 166
14	17,451	CP Charoensukmongkol, Peerayuth	National Institute of Development Administration	Business & Management	Rank 436
15	19,567	PB Prideaux, Bruce	Prince of Songkla University	Sport, Leisure & Tourism	Rank 84
16	21,179	AA Anal, Anil Kumar	Asian Institute of Technology Thailand	Food Science	Rank 171
17	24,137	KP Kumam, Poom	King Mongkut's University of Technology Thonburi	Applied Mathematics	Rank 74
18	24,265	FT Flegel, Timothy W.	Thailand National Center for Genetic Engineering and Biotechnology	Fisheries	Rank 38
19	26,663	SS Shrestha, Sangam	Asian Institute of Technology Thailand	Environmental Engineering	Rank 143
20	28,407	SR Sothornvit, Rungsinee	Kasetsart University, Kamphaeng Saen Campus	Food Science	Rank 237
21	31,423	DS Dhakal, Shobhakar	Asian Institute of Technology Thailand	Energy	Rank 714
22	32,422	WJ Warren, John	Chulalongkorn University	Geology	Rank 33
23	32,722	PP Patterson, Paul	Chiang Mai University	Marketing	Rank 179
24	32,952	Makul, Natt	Phranakhon Rajabhat University	Building & Construction	Rank 200
25	33,148	VD Van Doan, Hien	Chiang Mai University	Fisheries	Rank 54
26	33,164	WT Witoon, Thongthai	Kasetsart University	Energy	Rank 756
27	35,720	AS Adisakwattana, Sirichai	Chulalongkorn University	Food Science	Rank 321
28	36,323	AP Aramwit, Pornanong	Chulalongkorn University	Pharmacology & Pharmacy	Rank 189
29	36,497	Rajchakit, Grienggrai	Maejo University	Applied Mathematics	Rank 96
30	39,819	SP Sriamornsak, Pornsak	Silpakorn University	Pharmacology & Pharmacy	Rank 213
31	41,175	TV Thongboonkerd, Visith	Siriraj Hospital	Biochemistry & Molecular Biology	Rank 833
32	42,815	Thounthong, Phatiphat	King Mongkut's University of Technology North Bangkok	Electrical & Electronic Engineering	Rank 133
33	48,683	DS Devahastin, Sakamon	King Mongkut's University of Technology Thonburi	Food Science	Rank 463
34	49,130	LL Lebel, Louis	Chiang Mai University	Environmental Sciences	Rank 773
35	49,312	PS Pengpid, Supa	Mahidol University	Public Health	Rank 544
36	49,878	SP Sukontasukkul, Piti	King Mongkut's University of Technology North Bangkok	Building & Construction	Rank 332
37	51,290	LV Lohsiriwat, Varut	Siriraj Hospital	Surgery	Rank 224
38	51,683	SU Siripatrawan, Ubonrat	Chulalongkorn University	Food Science	Rank 494
39	53,019	RB Rittichainuwat, Bongkosh	Siam University	Sport, Leisure & Tourism	Rank 228
40	54,453	RR Ritchie, Raymond J.	Prince of Songkla University	Plant Biology & Botany	Rank 896
41	54,501	BS Boon-Itt, Sakun	Thammasat University	Business & Management	Rank 1,161
42	55,325	AA Anuwong, Angkoon	Police General Hospital	Surgery	Rank 257
43	55,531	BS Babel, Sandhya	Sirindhorn International Institute of Technology, Thammasat University	Environmental Sciences	Rank 892
44	56,233	VC Visvanathan, Chettiyappan	Asian Institute of Technology Thailand	Environmental Sciences	Rank 907
45	56,341	ZA Ziegler, Alan D.	Maejo University	Environmental Engineering	Rank 322
46	57,464	CA Chaipanich, Arnon	Chiang Mai University	Applied Physics	Rank 1,071
47	58,359	QJ Qin, Jiaqian	Metallurgy and Materials Research Institute Chulalongkorn University	Materials	Rank 1,061
48	59,823	DP Dung, Phan Minh	Asian Institute of Technology Thailand	Artificial Intelligence & Image Processing	Rank 1,937
49	60,754	SP Supaphol, Pitt	Chulalongkorn University	Polymers	Rank 541
50	61,578	OM Ogawa, Makoto	Vidyasirimedhi Institute of Science and Technology	Chemical Physics	Rank 817
51	61,719	WD Wichelns, Dennis	Stockholm Environment Institute	Environmental Engineering	Rank 357
52	63,718	JC Jaturapitakkul, Chai	King Mongkut's University of Technology Thonburi	Building & Construction	Rank 426
53	64,433	BT Bourtoom, Thawien	Prince of Songkla University	Food Science	Rank 626
54	64,761	HN Harnkarnsujarit, Nathdanai	Kasetsart University	Food Science	Rank 629
55	65,010	MJ McNeely, Jeffrey A.	Society for Conservation Biology Asia Section	Ecology	Rank 1,214
56	65,638	KJ Kaewkhao, J.	Nakhon Pathom Rajabhat University	Materials	Rank 1,210
57	68,017	RH Reinders, Hayo	King Mongkut's University of Technology Thonburi	Languages & Linguistics	Rank 252
58	68,734	VW Viriyasitavat, Wattana	Chulalongkorn Business School	Artificial Intelligence & Image Processing	Rank 2,202
59	69,511	LP Lumbiganon, Pisake	Faculty of Medicine, Khon Kaen University	General & Internal Medicine	Rank 945
60	70,064	BR Bhidayasiri, Roongroj	King Chulalongkorn Memorial Hospital	Neurology & Neurosurgery	Rank 3,427
61	70,096	ER El-Nabulsi, Rami Ahmad	Chiang Mai University	Nuclear & Particle Physics	Rank 795
62	70,454	WM Wanapat, Metha	Khon Kaen University	Dairy & Animal Science	Rank 162
63	71,001	MG Moschis, George P.	College of Management Mahidol University	Marketing	Rank 400
64	71,641	SN Sombatsompop, Narongrit	King Mongkut's University of Technology Thonburi	Polymers	Rank 654
65	72,072	SV Sata, Vanchai	Khon Kaen University	Building & Construction	Rank 485
66	73,698	TV Tangcharoensathien, Viroj	International Health Policy Program, Thailand	Health Policy & Services	Rank 181
67	74,310	LD Limmathurotsakul, Direk	Mahidol Oxford Tropical Medicine Research Unit	Microbiology	Rank 1,688
68	76,157	CN Chattipakorn, Nipon	Faculty of Medicine, Chiang Mai University	Cardiovascular System & Hematology	Rank 2,128
69	76,616	CO Chailapakul, Orawon	Chulalongkorn University	Analytical Chemistry	Rank 497
70	76,800	VW Visessanguan, Wonnop	Thailand National Center for Genetic Engineering and Biotechnology	Food Science	Rank 761
71	77,680	SB Sripa, Banchob	Faculty of Medicine, Khon Kaen University	Mycology & Parasitology	Rank 99
72	77,955	GS Gheewala, Shabbir H.	King Mongkut's University of Technology Thonburi	Environmental Sciences	Rank 1,313
73	78,843	CM Chaijan, Manat	Walailak University	Food Science	Rank 791
74	78,961	MS Maensiri, Santi	Suranaree University of Technology	Applied Physics	Rank 1,520
75	79,338	DS Dowell, Scott F.	Thailand Ministry of Public Health	Microbiology	Rank 1,818
76	82,780	RP Rachtanapun, Pornchai	Chiang Mai University	Polymers	Rank 781
77	83,721	CS Chattipakorn, Siriporn C.	Chiang Mai University	Cardiovascular System & Hematology	Rank 2,310
78	85,175	SS Soponronnarit, Somchart	King Mongkut's University of Technology Thonburi	Food Science	Rank 869
79	86,160	VS von Seidlein, Lorenz	Mahidol Oxford Tropical Medicine Research Unit	Tropical Medicine	Rank 112
80	89,765	NI Ngamroo, Issarachai	King Mongkut's Institute of Technology Ladkrabang	Energy	Rank 2,199
81	89,844	CP Cholamjiak, Prasit	University of Phayao	General Mathematics	Rank 414
82	89,892	SW Sintunavarat, Wutiphol	Thammasat University	General Mathematics	Rank 415
83	90,005	RS Rawdkuen, Saroat	Mae Fah Luang University	Food Science	Rank 927
84	91,517	TA Thakkinstian, Ammarin	Faculty of Medicine Ramathibodi Hospital, Mahidol University	General & Internal Medicine	Rank 1,202
85	93,607	EP Edwards, Peter	Asian Institute of Technology Thailand	Fisheries	Rank 190
86	95,401	PA Phuruangrat, Anukorn	Prince of Songkla University	Materials	Rank 1,855
87	99,026	PY Poovorawan, Yong	Faculty of Medicine, Chulalongkorn University	Virology	Rank 541
88	99,255	CB Cheirsilp, Benjamas	Prince of Songkla University	Biotechnology	Rank 436
89	100,361	SB Sivamaruthi, Bhagavathi Sundaram	Chiang Mai University	Pharmacology & Pharmacy	Rank 662
90	101,153	SA Sumalee, Agachai	Chulalongkorn University	Logistics & Transportation	Rank 320
91	101,896	TS Turale, Sue	Chiang Mai University	Nursing	Rank 224
92	103,748	BM Babel, Mukand	Asian Institute of Technology Thailand	Environmental Engineering	Rank 628
93	104,655	SM Sawangphruk, Montree	Vidyasirimedhi Institute of Science and Technology	Energy	Rank 2,632
94	105,373	BD Bergado, Dennes T.	Asian Institute of Technology Thailand	Geological & Geomatics Engineering	Rank 962
95	107,428	TT Thongtem, Titipun	Chiang Mai University	Materials	Rank 2,094
96	107,928	PT Phenrat, Tanapon	Naresuan University	Environmental Sciences	Rank 1,855
97	108,799	QD Quicke, Donald L.J.	Chulalongkorn University	Evolutionary Biology	Rank 697
98	110,166	LK Likhitwitayawuid, Kittisak	Chulalongkorn University	Medicinal & Biomolecular Chemistry	Rank 401
99	113,319	LS Likitlersuang, Suched	Chulalongkorn University	Geological & Geomatics Engineering	Rank 1,037
100	113,734	CD Crespy, Daniel	Vidyasirimedhi Institute of Science and Technology	Polymers	Rank 1,087
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You are seeing the first 100. 241 more are on the 2023 single-year list.

Ranks 101 to 341The whole list, not only the top 100.

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Countries with a similar count

Single-year list2023

Czech Republic472 scientistsin 2023

United Arab Emirates408 scientistsin 2023

Mexico355 scientistsin 2023

Hungary286 scientistsin 2023

Chile252 scientistsin 2023

Romania238 scientistsin 2023

Explore other countries

Single-year list2023

Singapore1,222 scientistsin 2023

Malaysia716 scientistsin 2023

Vietnam171 scientistsin 2023

Indonesia92 scientistsin 2023

Philippines50 scientistsin 2023

Brunei22 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 single-year list, Chulalongkorn University has the most listed scientists from Thailand, with 37. It is followed by Chiang Mai University with 28.

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 341 in 2023, a change of +82.4%.

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.