Iran's Top 2% Scientists 2022

Iran has 1,943 scientists on the 2022 single-year Top 2% list, up 14.2% from 1,701 in 2021. That places Iran 16th in the world by number of listed scientists, up 2 places. University of Tehran has the most listed scientists (97), followed by Daneshgahe Elm va Sanat e Iran (60).

Single Year

1,943

+242 (+14.2%) vs 2021

Career Data

742

+88 (+13.5%) vs 2021

World rank by count

#16

up 2 places vs 2021

Institutes

416

+50 (+13.7%) vs 2021

Scientists in Iran on the list, by year

The single-year count has grown 68% since 2020.

Single-year list, change on the previous year

2021+47.4%

2022+14.2%

2023+10.2%

2024+8.6%

2025+9.0%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	1,154		433
2021	1,701	+47.4%	654	+51.0%
2022	1,943	+14.2%	742	+13.5%
2023	2,141	+10.2%	871	+17.4%
2024	2,325	+8.6%	1,020	+17.1%
2025	2,534	+9.0%	1,201	+17.7%

Top 10 institutes in Iran

By number of listed scientists

Single-year list2022

Show the list

All 1,943 scientists

Single-year list2022

The first 100 are free to browse.

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Rank in Iran	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	70	Sheikholeslami, Mohsen	Babol Noshirvani University of Technology	Mechanical Engineering & Transports	Rank 1
2	402	SA Sahebkar, Amirhossein	Mashhad University of Medical Sciences	Biochemistry & Molecular Biology	Rank 12
3	855	SM Salavati-Niasari, Masoud	University of Kashan	Materials	Rank 15
4	1,128	GB Ghanbari, Behzad	Kermanshah University of Technology	Applied Mathematics	Rank 5
5	1,309	Jafari, Seid Mahdi	Gorgan University of Agricultural Sciences and Natural Resources	Food Science	Rank 10
6	1,310	AO Akhavan, Omid	Sharif University of Technology	Nanoscience & Nanotechnology	Rank 43
7	1,648	AM Afrand, Masoud	Islamic Azad University, Najafabad Branch	Mechanical Engineering & Transports	Rank 19
8	1,779	AA Askarzadeh, Alireza	Graduate University of Advanced Technology	Energy	Rank 37
9	1,813	DM Dehghan, Mehdi	Amirkabir University of Technology	Numerical & Computational Mathematics	Rank 2
10	1,887	MA Maleki, Ali	Daneshgahe Elm va Sanat e Iran	Organic Chemistry	Rank 27
11	2,181	NM Nasrollahzadeh, Mahmoud	University of Qom	Organic Chemistry	Rank 33
12	2,451	KA Kaveh, Ali	Daneshgahe Elm va Sanat e Iran	Civil Engineering	Rank 4
13	2,828	IS Iravani, Siavash	Isfahan University of Medical Sciences	Organic Chemistry	Rank 46
14	2,881	KY Kiani, Y.	Shahrekord University	Mechanical Engineering & Transports	Rank 31
15	3,173	Pourghasemi, Hamid Reza	Shiraz University	Geochemistry & Geophysics	Rank 44
16	3,194	GN Ghadimi, Noradin	Islamic Azad University, Ardabil Branch	Networking & Telecommunications	Rank 28
17	3,761	GD Ganji, D. D.	Babol Noshirvani University of Technology	Mechanical Engineering & Transports	Rank 38
18	3,793	RJ Rezaee Jordehi, Ahmad	Islamic Azad University, Rasht Branch	Energy	Rank 76
19	3,920	HE Hemmat Esfe, Mohammad	Imam Hossein University	Mechanical Engineering & Transports	Rank 40
20	4,277	KA Khataee, Alireza	University of Tabriz	Chemical Engineering	Rank 20
21	4,468	AF Azizi, Fereidoun	Shahid Beheshti University of Medical Sciences, Research Institute for Endocrine Science	Endocrinology & Metabolism	Rank 92
22	4,702	Mahmoodi, Niyaz Mohammad	Institute for Color Science and Technology	Chemical Engineering	Rank 22
23	4,720	MH Mirzaei, Hamed	Kashan University of Medical Sciences and Health Services	Biochemistry & Molecular Biology	Rank 119
24	5,247	TD Toghraie, Davood	Islamic Azad University	Mechanical Engineering & Transports	Rank 49
25	5,388	BE Babaei, Ebrahim	University of Tabriz	Electrical & Electronic Engineering	Rank 16
26	5,491	TA Taleizadeh, Ata Allah	University of Tehran	Operations Research	Rank 20
27	5,717	HH Hosseinzadeh, Hossein	School of Pharmacy	Medicinal & Biomolecular Chemistry	Rank 17
28	5,782	KR Kelishadi, Roya	Child Growth and Development Research Center, Isfahan UMS	General & Internal Medicine	Rank 104
29	6,208	NT Niknam, Taher	Shiraz University of Technology	Energy	Rank 117
30	6,274	MA Maleki, Akbar	Shahrood University of Technology	Energy	Rank 118
31	6,332	BM Bahiraei, Mehdi	Razi University	Chemical Engineering	Rank 30
32	6,452	Karimi-Maleh, Hassan	Quchan University of Technology	Analytical Chemistry	Rank 20
33	6,645	JA Jouyban, Abolghasem	Pharmaceutical Analysis Research Center	Chemical Engineering	Rank 32
34	6,846	GM Ghaedi, Mehrorang	Yasouj University	Organic Chemistry	Rank 97
35	7,045	MK Mortezaee, Keywan	Kurdistan University of Medical Sciences	Biochemistry & Molecular Biology	Rank 167
36	7,202	VH Veisi, Hojat	Payame Noor University	Organic Chemistry	Rank 102
37	7,205	AA Asadi-Pooya, Ali A.	Shiraz University of Medical Sciences	Neurology & Neurosurgery	Rank 463
38	7,293	ZY Zare, Yasser	Iranian Academic Center for Education, Culture and Research	Polymers	Rank 40
39	7,821	RB Ramezanzadeh, Bahram	Institute for Color Science and Technology	Polymers	Rank 48
40	8,338	NG Najafi, Gholamhassan	Tarbiat Modares University	Energy	Rank 155
41	8,668	SZ Shariatinia, Zahra	Amirkabir University of Technology	Inorganic & Nuclear Chemistry	Rank 25
42	8,825	MA Montazeri, Ali	Iranian Academic Center for Education, Culture and Research	General & Internal Medicine	Rank 152
43	9,028	HM Hatami, M.	Ferdowsi University of Mashhad	Mechanical Engineering & Transports	Rank 81
44	9,095	Abdollahi, Mohammad	The Institute of Pharmaceutical Sciences (TIPS)	Pharmacology & Pharmacy	Rank 45
45	9,157	MH Mirzadeh, Hamed	University of Tehran	Materials	Rank 130
46	9,409	MA Mahvi, Amir Hossein	Tehran University of Medical Sciences	Environmental Sciences	Rank 100
47	9,511	BM Barati, Mohammad Reza	Amirkabir University of Technology	Mechanical Engineering & Transports	Rank 89
48	9,570	RN Rezaei, Nima	Research Center for Immunodeficiencies	Immunology	Rank 283
49	9,581	SS Shahrokhian, Saeed	Sharif University of Technology	Analytical Chemistry	Rank 31
50	9,964	AN Amjady, Nima	Semnan University	Energy	Rank 185
51	9,975	AA Ashori, Alireza	Iranian Research Organization for Science and Technology	Polymers	Rank 68
52	10,035	AM Ahmadi, Mohammad Hossein	Shahrood University of Technology	Energy	Rank 188
53	10,250	AS Abbasbandy, S.	Imam Khomeini International University	Numerical & Computational Mathematics	Rank 16
54	10,519	AM Aghbashlo, Mortaza	University of Tehran	Energy	Rank 204
55	10,805	AM Arefi, Mohammad	University of Kashan	Mechanical Engineering & Transports	Rank 99
56	11,097	AP Ahmadi, Pouria	University of Tehran	Energy	Rank 217
57	11,406	MR Malekzadeh, Reza	Digestive Oncology Research Center	General & Internal Medicine	Rank 186
58	11,441	H- Hajian -Tilaki, Karimollah	Babol University of Medical Sciences	General & Internal Medicine	Rank 187
59	11,486	SR Shokuhi Rad, Ali	Islamic Azad University	Applied Physics	Rank 233
60	11,534	MM Mehrpooya, Mehdi	University of Tehran	Energy	Rank 226
61	11,901	SA Simchi, Abdolreza	Sharif University of Technology	Materials	Rank 178
62	12,004	NV Nourani, Vahid	University of Tabriz	Environmental Engineering	Rank 61
63	12,109	MM Mozafari, Masoud	School of Advanced Technologies in Medicine (IUMS)	Materials	Rank 181
64	12,441	NA Nezamzadeh-Ejhieh, Alireza	Islamic Azad University, Shahreza Branch	Chemical Physics	Rank 217
65	12,536	EM Eslami, M.	University of Mazandaran	Optics	Rank 55
66	12,658	MM Miransari, Mohammad	AbtinBerkeh Scientific Ltd. Company	Agronomy & Agriculture	Rank 74
67	12,842	AS Azizian, Saeid	Bu-Ali Sina University	Chemical Physics	Rank 222
68	12,988	MB Mohammadi-Ivatloo, B.	University of Tabriz	Energy	Rank 255
69	13,117	KR Kalbasi, Rasool	Islamic Azad University, Najafabad Branch	Physical Chemistry	Rank 61
70	13,216	RH Rezazadeh, Hadi	Amol University of Special Modern Technologies	General Physics	Rank 81
71	13,487	AM Aliha, M. R.M.	Daneshgahe Elm va Sanat e Iran	Mechanical Engineering & Transports	Rank 121
72	13,523	EH Etesami, Hassan	University of Tehran	Agronomy & Agriculture	Rank 80
73	13,617	NS Nabavi, Seyed M.	Baqiyatallah University of Medical Sciences	Medicinal & Biomolecular Chemistry	Rank 38
74	13,730	FF Farzadfar, Farshad	Non-Communicable Diseases Research Center	General & Internal Medicine	Rank 221
75	13,749	EA Ensafi, Ali A.	Isfahan University of Technology	Analytical Chemistry	Rank 58
76	13,824	ZV Zare, V.	University of Tabriz	Energy	Rank 266
77	13,863	EF Ebrahimi, Farzad	Imam Khomeini International University	Mechanical Engineering & Transports	Rank 124
78	13,973	AZ Asemi, Zatollah	Kashan University of Medical Sciences and Health Services	Nutrition & Dietetics	Rank 100
79	14,509	SB Salehi, Bahare	Shahid Beheshti University of Medical Sciences	Biochemistry & Molecular Biology	Rank 367
80	14,653	JM Jalali, Mohsen	Bu-Ali Sina University	Agronomy & Agriculture	Rank 88
81	14,955	AA Alibeigloo, Akbar	Tarbiat Modares University	Mechanical Engineering & Transports	Rank 133
82	15,046	AR Ansari, R.	University of Guilan	Mechanical Engineering & Transports	Rank 134
83	15,066	OA Oryan, Ahmad	Shiraz University	Veterinary Sciences	Rank 7
84	15,541	EM Esrafili, Mehdi D.	University of Maragheh	Chemical Physics	Rank 268
85	15,828	SA Shahsavar, Amin	Kermanshah University of Technology	Energy	Rank 316
86	17,189	IM Izadi, Mohsen	Lorestan University	Mechanical Engineering & Transports	Rank 163
87	17,411	HR Hemmati, Reza	Kermanshah University of Technology	Energy	Rank 341
88	17,595	HA Habibi-Yangjeh, Aziz	University of Mohaghegh Ardabili	Chemical Physics	Rank 298
89	17,606	MA Morsali, Ali	Tarbiat Modares University	Inorganic & Nuclear Chemistry	Rank 55
90	17,871	EA Esteghamati, Alireza	Endocrinology and Metabolism Research Institute (TUMS)	Endocrinology & Metabolism	Rank 339
91	18,520	HA Heidari, Ali Asghar	University of Tehran	Artificial Intelligence & Image Processing	Rank 569
92	18,790	MS Madaeni, S. S.	Razi University	Chemical Engineering	Rank 96
93	18,829	SM Shokrieh, M. M.	Daneshgahe Elm va Sanat e Iran	Materials	Rank 295
94	18,950	HA Hafezalkotob, Ashkan	Islamic Azad University, South Tehran Branch	Operations Research	Rank 80
95	19,235	NA Nazari, Ali	Islamic azad University, Saveh Branch	Materials	Rank 301
96	19,253	VJ Varshosaz, Jaleh	Isfahan University of Medical Sciences	Pharmacology & Pharmacy	Rank 97
97	19,477	DM Dehghani, Mohammad Hadi	School of Public Health	Environmental Sciences	Rank 233
98	19,599	HS Hendi, S. H.	Shiraz University	Nuclear & Particle Physics	Rank 227
99	19,666	Rafiee, Roham	University of Tehran	Materials	Rank 309
100	19,991	AA Akbarzadeh, Abolfazl	Tabriz University of Medical Sciences	Pharmacology & Pharmacy	Rank 101
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Countries with a similar count

Single-year list2022

Switzerland3,233 scientistsin 2022

South Korea2,980 scientistsin 2022

Sweden2,472 scientistsin 2022

Denmark1,890 scientistsin 2022

Belgium1,872 scientistsin 2022

Israel1,537 scientistsin 2022

Explore other countries

Single-year list2022

India3,761 scientistsin 2022

Pakistan509 scientistsin 2022

Bangladesh147 scientistsin 2022

Sri Lanka32 scientistsin 2022

Nepal21 scientistsin 2022

China19,310 scientistsin 2022

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Frequently asked questions

How many scientists from Iran are in the 2022 Stanford Top 2% list?

1,943 scientists affiliated with Iran are on the 2022 single-year list, and 742 are on the career-long list.

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

On the 2022 single-year list, University of Tehran has the most listed scientists from Iran, with 97. It is followed by Daneshgahe Elm va Sanat e Iran with 60.

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

On the single-year list, Iran went from 1,154 scientists in 2020 to 1,943 in 2022, a change of +68.4%.

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.