Iran's Top 2% Scientists 2025: Career-Long List

Iran has 1,201 scientists on the 2025 career-long Top 2% list, up 17.7% from 1,020 in 2024. That places Iran 26th in the world by number of listed scientists, up 4 places. University of Tehran has the most listed scientists (78), followed by Sharif University of Technology (53).

Single Year

2,534

+209 (+9.0%) vs 2024

Career Data

1,201

+181 (+17.7%) vs 2024

World rank by count

#26

up 4 places vs 2024

Institutes

246

+54 (+28.1%) vs 2024

Scientists in Iran on the list, by year

The career-long count has more than doubled since 2020.

Career-long list, change on the previous year

2021+51.0%

2022+13.5%

2023+17.4%

2024+17.1%

2025+17.7%

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

Career-long list2025

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All 1,201 scientists

Career-long list2025

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	327	Sheikholeslami, Mohsen	Babol Noshirvani University of Technology	Mechanical Engineering & Transports	Rank 2
2	1,630	SM Salavati-Niasari, Masoud	University of Kashan	Materials	Rank 23
3	1,640	SA Sahebkar, Amirhossein	Mashhad University of Medical Sciences	Medicinal & Biomolecular Chemistry	Rank 3
4	1,909	DM Dehghan, Mehdi	Amirkabir University of Technology	Numerical & Computational Mathematics	Rank 3
5	4,108	AO Akhavan, Omid	Sharif University of Technology	Applied Physics	Rank 116
6	4,455	DG Domiri Ganji, Davood Domiri	Babol Noshirvani University of Technology	Mechanical Engineering & Transports	Rank 30
7	5,363	Mahmoodi, Niyaz Mohammad	Institute for Color Science and Technology	Chemical Engineering	Rank 18
8	5,458	AF Azizi, Fereidoun	Shahid Beheshti University of Medical Sciences, Research Institute for Endocrine Science	Endocrinology & Metabolism	Rank 162
9	5,462	KA Kaveh, Ali	Iran University of Science and Technology, College of Civil Engineering Tehran	Civil Engineering	Rank 6
10	5,707	Jafari, Seid Mahdi	Gorgan University of Agricultural Sciences and Natural Resources	Food Science	Rank 19
11	5,727	AS Abbasbandy, Saied	Imam Khomeini International University	Numerical & Computational Mathematics	Rank 4
12	7,613	KA Khataee, A.	University of Tabriz	Chemical Engineering	Rank 26
13	8,286	GM Ghaedi, Mehrorang	Yasouj University	Analytical Chemistry	Rank 40
14	9,170	NT Niknam, Taher	Shiraz University of Technology	Energy	Rank 101
15	11,788	KR Kelishadi, Roya	Isfahan University of Medical Sciences	General & Internal Medicine	Rank 183
16	12,127	MA Maleki, Ali	Iran University of Science and Technology	Organic Chemistry	Rank 262
17	12,312	MA Montazeri, Ali	Iranian Institute for Health Sciences Research	General & Internal Medicine	Rank 190
18	12,800	NM Nasrollahzadeh, Mahmoud	University of Qom	Organic Chemistry	Rank 278
19	13,829	EA Ensafi, Ail A.	Isfahan University of Technology	Analytical Chemistry	Rank 74
20	14,161	SM Setare, Mohammmadreza Reza	University of Kurdistan	Nuclear & Particle Physics	Rank 190
21	15,611	IS Iravani, Siavash	Boostan Ave	Nanoscience & Nanotechnology	Rank 239
22	15,740	JA Jouyban, Abolghasem	Pharmaceutical Analysis Research Center	Chemical Engineering	Rank 57
23	15,878	Abdollahi, Mohammad	School of Pharmacy	Pharmacology & Pharmacy	Rank 104
24	16,258	SA Simchi, Abdolreza (Arash)	Sharif University of Technology	Materials	Rank 198
25	16,320	SS Shahrokhian, Saeed	Sharif University of Technology, Department of Chemistry	Analytical Chemistry	Rank 85
26	16,482	RN Rezaei, Nima Attaran	Tehran University of Medical Sciences	Immunology	Rank 575
27	16,725	HH Hosseinzadeh, Hossein	Mashhad University of Medical Sciences	Medicinal & Biomolecular Chemistry	Rank 51
28	16,736	BE Babaei, Ebrahim	University of Tabriz	Electrical & Electronic Engineering	Rank 45
29	16,750	AM Afrand, Masoud	Islamic Azad University, Najafabad Branch	Mechanical Engineering & Transports	Rank 108
30	17,107	SM Safarinejad, Mohammad Reza	School of Medicine	Urology & Nephrology	Rank 177
31	17,140	AA Ashori, Alireza	Iranian Research Organization for Science and Technology	Polymers	Rank 138
32	18,309	RJ Rezaee Jordehi, Ahmad	Islamic Azad University, Rasht Branch	Energy	Rank 210
33	18,650	KY Kiani, Yaser	Shahrekord University	Mechanical Engineering & Transports	Rank 121
34	19,974	AA Askarzadeh, Alireza	Graduate University of Advanced Technology	Energy	Rank 230
35	21,742	Pourghasemi, Hamid Reza	Shiraz University	Geochemistry & Geophysics	Rank 358
36	22,526	ZM Zolfigol, Mohammad Ali	Bu-Ali Sina University	Organic Chemistry	Rank 457
37	22,633	HE Hemmat Esfe, Mohammad	Semnan University	Mechanical Engineering & Transports	Rank 146
38	23,531	GB Ghanbari, Behzad	Kermanshah University of Technology	General Physics	Rank 128
39	23,544	MA Mahvi, Amir Hossein	Tehran University of Medical Sciences	Environmental Sciences	Rank 152
40	24,719	MS Madaeni, Sayyed Siavash	Razi University	Chemical Engineering	Rank 99
41	24,909	AS Azizian, Saeid	Bu-Ali Sina University	Chemical Physics	Rank 539
42	24,952	MH Mirzaei, Hamed Reza	Kashan University of Medical Sciences	Oncology & Carcinogenesis	Rank 1,104
43	25,912	MP Malekzadeh, Parviz	Persian Gulf University	Mechanical Engineering & Transports	Rank 163
44	26,070	Ahmadi, Mohammadali	Sharif University of Technology	Energy	Rank 306
45	26,367	TD Toghraie, Davood	Islamic Azad University	Mechanical Engineering & Transports	Rank 167
46	26,518	AA Afkhami, Abbas	Bu-Ali Sina University	Analytical Chemistry	Rank 153
47	26,640	MS Mallakpour, Sh E.	Isfahan University of Technology	Polymers	Rank 225
48	27,527	MR Malekzadeh, Reza	Tehran University of Medical Sciences	General & Internal Medicine	Rank 397
49	28,377	MH Mirzadeh, Hamed	University of Tehran	Materials	Rank 349
50	28,661	AS Akhondzadeh, Shahin H.	Tehran University of Medical Sciences	Psychiatry	Rank 668
51	28,678	VH Veisi, Hojat	Payame Noor University	Organic Chemistry	Rank 557
52	29,379	JM Jalali, Mohsen	Bu-Ali Sina University	Environmental Sciences	Rank 186
53	30,114	TA Taleizadeh, A. A.	University of Tehran	Operations Research	Rank 97
54	30,775	SA Sheykhi, Ahmad	Shiraz University	Nuclear & Particle Physics	Rank 438
55	31,524	BM Bahiraei, Mehdi	Razi University	Chemical Engineering	Rank 120
56	32,699	AA Asadi-Pooya, Ali Akbar	Shiraz University of Medical Sciences	Neurology & Neurosurgery	Rank 2,363
57	33,832	AM Aghbashlo, Mortaza	University of Tehran	Energy	Rank 419
58	34,265	VJ Varshosaz, Jaleh	Isfahan University of Medical Sciences	Pharmacology & Pharmacy	Rank 284
59	35,271	HK Hajian-Taliki, Karimollah	Babol University of Medical Sciences, Faculty of Medicine	General & Internal Medicine	Rank 485
60	35,500	GN Ghadimi, Noradin	Islamic Azad University, Ardabil Branch	Energy	Rank 449
61	35,758	SM Shokrieh, Mahmood Mehrdad	Iran University of Science and Technology	Materials	Rank 455
62	36,364	HM Hatami, Mohammad Famil	Esfarayen University of Technology	Mechanical Engineering & Transports	Rank 228
63	36,854	KA Khodaei, Amin	University of Tabriz	Energy	Rank 469
64	37,114	SA Shaabani, Ahmad	Shahid Beheshti University	Organic Chemistry	Rank 696
65	37,458	MA Morsali, Ali	Tarbiat Modares University	Inorganic & Nuclear Chemistry	Rank 206
66	37,487	AM Arefi, Mohammad R.	University of Kashan	Mechanical Engineering & Transports	Rank 241
67	37,784	MB Mashhoon, Bahram	Sharif University of Technology	Nuclear & Particle Physics	Rank 552
68	38,265	SJ Salehi, Jawad A.	Azarbaijan Shahid Madani University	Networking & Telecommunications	Rank 317
69	38,381	HS Hendi, Seyed Hossein	Shiraz University	Nuclear & Particle Physics	Rank 560
70	38,424	RM Rahimpour, Mohammad Reza	Shiraz University	Chemical Engineering	Rank 151
71	38,972	ZY Zare, Y.	Iranian Academic Center for Education, Culture and Research	Materials	Rank 507
72	39,210	EF Ebrahimi, F. Amir	Imam Khomeini International University	Mechanical Engineering & Transports	Rank 252
73	39,301	YM Yari, Mortaza	University of Tabriz	Energy	Rank 494
74	39,701	MT Mohammadi, Toraj	Iran University of Science and Technology	Chemical Engineering	Rank 156
75	40,084	NG Najafi, Gholamhassan	Tarbiat Modares University	Energy	Rank 502
76	40,323	SZ Shariatinia, Zahra	Amirkabir University of Technology	Inorganic & Nuclear Chemistry	Rank 225
77	40,344	AS Alavian, Seyed Moayed	Baqiyatallah University of Medical Sciences	Gastroenterology & Hepatology	Rank 606
78	40,395	AR Ansari, Raza	University of Guilan	Mechanical Engineering & Transports	Rank 262
79	40,458	BM Barati, Mohammad Reza	Amirkabir University of Technology	Mechanical Engineering & Transports	Rank 263
80	41,084	NA Nazari, Ali H.	Islamic Azad University, Saveh Branch	Materials	Rank 536
81	41,451	GA Ghanizadeh, Ahmad	Research Center for Psychiatry and Behavioral Sciences	Psychiatry	Rank 881
82	41,581	HA Habibi-Yangjeh, Aziz	University of Mohaghegh Ardabili	Chemical Physics	Rank 854
83	41,611	MA Mohammad Aliha, Mohammad Reza	Iran University of Science and Technology	Mechanical Engineering & Transports	Rank 277
84	42,118	RA Rahimpour, Ahmad	Babol Noshirvani University of Technology	Chemical Engineering	Rank 168
85	42,163	SM Sheikh-Jabbari, Mohammmad Mahdi	Iranian Research Institute for Fundamental Sciences	Nuclear & Particle Physics	Rank 616
86	42,622	AK Abbaspour, Karim C.	Semnan University	Environmental Engineering	Rank 165
87	42,788	SM Shamsipour, Mojtaba	Razi University	Analytical Chemistry	Rank 276
88	43,233	HY Hatefi, Youssef	School of Medicine	Biochemistry & Molecular Biology	Rank 1,698
89	43,403	MM Miransari, Mohammad	AbtinBerkeh Scientific Ltd. Company	Agronomy & Agriculture	Rank 198
90	43,475	SH Shokrollahi, Hooman	Shiraz University of Technology	Applied Physics	Rank 1,055
91	43,525	KA Karimipour, Arash	Islamic Azad University, Najafabad Branch	Mechanical Engineering & Transports	Rank 287
92	43,912	NV Nourani, Vahid	University of Tabriz	Environmental Engineering	Rank 171
93	45,765	MK Mortezaee, Keywan	Kurdistan University of Medical Sciences	Biochemistry & Molecular Biology	Rank 1,781
94	46,042	AA Alibeigloo, A.	Tarbiat Modares University	Mechanical Engineering & Transports	Rank 305
95	46,068	MM Mirzazadeh, M. A.	University of Guilan	Optics	Rank 182
96	47,335	MM Mehrpooya, Mehdi	University of Tehran	Energy	Rank 610
97	47,703	DB Davvaz, Bijan	Yazd University	General Mathematics	Rank 190
98	48,281	AA Alavi, Ali	Bu-Ali Sina University	Chemical Physics	Rank 983
99	49,223	AM Aghababa, Mohammad Pourmahmood	Urmia University of Technology	Acoustics	Rank 92
100	50,685	EM Eslami, Mostafa	University of Mazandaran	Optoelectronics & Photonics	Rank 123
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Countries with a similar count

Career-long list2025

Austria1,472 scientists

Poland1,412 scientists

Turkey1,308 scientists

Brazil1,195 scientists

New Zealand1,167 scientists

Greece1,161 scientists

Explore other countries

Career-long list2025

India3,371 scientists

Pakistan268 scientists

Bangladesh100 scientists

Sri Lanka33 scientists

China12,375 scientists

Japan8,730 scientists

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Frequently asked questions

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

2,534 scientists affiliated with Iran are on the 2025 single-year list, and 1,201 are on the career-long list.

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

On the 2025 career-long list, University of Tehran has the most listed scientists from Iran, with 78. It is followed by Sharif University of Technology with 53.

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

On the career-long list, Iran went from 433 scientists in 2020 to 1,201 in 2025, a change of +177.4%.

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.