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Iran's Top 2% Scientists 2025

Iran has 2,534 scientists on the 2025 single-year Top 2% list, up 9.0% from 2,325 in 2024. That places Iran 16th in the world by number of listed scientists. University of Tehran has the most listed scientists (119), followed by Tehran University of Medical Sciences (96).

Single Year
2,534
+209 (+9.0%) vs 2024
Career Data
1,201
+181 (+17.7%) vs 2024
World rank by count
#16
No change vs 2024
Institutes
418
+136 (+48.2%) vs 2024

Scientists in Iran on the list, by year

The single-year count has more than doubled 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
YearSingle YearChangeCareer DataChange
20201,154433
20211,701+47.4%654+51.0%
20221,943+14.2%742+13.5%
20232,141+10.2%871+17.4%
20242,325+8.6%1,020+17.1%
20252,534+9.0%1,201+17.7%

Top 10 institutes in Iran

By number of listed scientists

Single-year list2025
Show the list
  1. 1University of Tehran119
  2. 2Tehran University of Medical Sciences96
  3. 3University of Tabriz66
  4. 4Iran University of Science and Technology63
  5. 5Shahid Beheshti University of Medical Sciences59
  6. 6Tabriz University of Medical Sciences58
  7. 7Tarbiat Modares University57
  8. 8Iran University of Medical Sciences54
  9. 9Amirkabir University of Technology51
  10. 10Kermanshah University of Medical Sciences47

All 2,534 scientists

Single-year list2025

The first 100 are free to browse.

Rank in Iran World rank Scientist Institute Sub-field Rank in sub-field
1 174 Mashhad University of Medical Sciences Medicinal & Biomolecular Chemistry Rank 1
2 268 Babol Noshirvani University of Technology Mechanical Engineering & Transports Rank 1
3 363 Iran University of Science and Technology, College of Civil Engineering Tehran Civil Engineering Rank 1
4 415 Gorgan University of Agricultural Sciences and Natural Resources Food Science Rank 5
5 858 Boostan Ave Nanoscience & Nanotechnology Rank 31
6 1,287 University of Kashan Materials Rank 26
7 1,673 Islamic Azad University, Urmia Branch Artificial Intelligence & Image Processing Rank 98
8 1,687 Institute for Color Science and Technology Chemical Engineering Rank 6
9 1,864 Islamic Azad University, Rasht Branch Energy Rank 50
10 1,894 Tehran University of Medical Sciences Immunology Rank 43
11 2,288 Shiraz University Geochemistry & Geophysics Rank 21
12 2,322 Sharif University of Technology Applied Physics Rank 64
13 3,038 Iran University of Science and Technology Organic Chemistry Rank 41
14 3,046 Kurdistan University of Medical Sciences Biochemistry & Molecular Biology Rank 54
15 3,086 Kermanshah University of Technology General Physics Rank 25
16 3,214 University of Tabriz Chemical Engineering Rank 14
17 3,234 Golestan University Languages & Linguistics Rank 19
18 3,435 University of Tehran Agronomy & Agriculture Rank 23
19 3,517 Shahid Beheshti University of Medical Sciences, Research Institute for Endocrine Science Endocrinology & Metabolism Rank 51
20 3,767 Shahrekord University Mechanical Engineering & Transports Rank 34
21 4,030 Amirkabir University of Technology Inorganic & Nuclear Chemistry Rank 8
22 4,073 Graduate University of Advanced Technology Energy Rank 104
23 4,189 University of Tehran Materials Rank 76
24 4,271 Amirkabir University of Technology Numerical & Computational Mathematics Rank 6
25 4,471 Isfahan University of Medical Sciences General & Internal Medicine Rank 96
26 4,548 Shiraz University of Medical Sciences Neurology & Neurosurgery Rank 228
27 4,691 University of Kashan Mechanical Engineering & Transports Rank 47
28 4,706 University of Tehran Energy Rank 126
29 4,749 University of Qom Organic Chemistry Rank 68
30 5,052 Bu-Ali Sina University Food Science Rank 34
31 5,247 Babol Noshirvani University of Technology Mechanical Engineering & Transports Rank 50
32 6,096 Neurosciences Research Center General & Internal Medicine Rank 117
33 6,156 Tehran University of Medical Sciences General & Internal Medicine Rank 121
34 6,285 University of Tehran Economics Rank 132
35 6,319 Kashan University of Medical Sciences Oncology & Carcinogenesis Rank 172
36 6,505 Islamic Azad University Mechanical Engineering & Transports Rank 64
37 6,872 Pharmaceutical Analysis Research Center Chemical Engineering Rank 29
38 7,186 Islamic Azad University, Ardabil Branch Energy Rank 180
39 7,398 University of Tehran Artificial Intelligence & Image Processing Rank 377
40 7,458 Shahrood University of Technology Energy Rank 189
41 7,540 Amol University of Special Modern Technologies Optoelectronics & Photonics Rank 10
42 7,566 Iran University of Science and Technology Mechanical Engineering & Transports Rank 71
43 7,703 Azarbaijan Shahid Madani University Chemical Physics Rank 133
44 8,012 Mashhad University of Medical Sciences Medicinal & Biomolecular Chemistry Rank 25
45 8,103 Iranian Institute for Health Sciences Research General & Internal Medicine Rank 149
46 8,124 Tehran University of Medical Sciences General & Internal Medicine Rank 150
47 8,153 Yasouj University Analytical Chemistry Rank 37
48 8,393 School of Pharmacy Pharmacology & Pharmacy Rank 42
49 8,399 University of Tabriz Electrical & Electronic Engineering Rank 32
50 8,531 Islamic Azad University, Shahreza Branch Chemical Physics Rank 144
51 8,773 Institute for Color Science and Technology Polymers Rank 50
52 8,848 University of Tehran Energy Rank 229
53 9,047 Bu-Ali Sina University Materials Rank 160
54 9,076 University of Tehran Operations Research Rank 38
55 9,091 Amirkabir University of Technology Chemical Engineering Rank 41
56 9,196 Shiraz University Environmental Sciences Rank 197
57 9,274 Isfahan University of Technology Polymers Rank 56
58 9,384 Shahid Beheshti University of Medical Sciences Oncology & Carcinogenesis Rank 265
59 9,440 Baqiyatallah University of Medical Sciences Psychiatry Rank 213
60 9,547 Shiraz University of Technology Energy Rank 253
61 9,560 University of Bonab Materials Rank 172
62 9,607 Iranian Academic Center for Education, Culture and Research Materials Rank 174
63 9,652 Islamic Azad University, Najafabad Branch Mechanical Engineering & Transports Rank 91
64 9,669 University of Tabriz Environmental Engineering Rank 45
65 9,836 Urmia University Food Science Rank 84
66 9,993 Shahrood University of Technology Materials Rank 181
67 10,093 University of Tabriz Polymers Rank 65
68 10,136 Bushehr University of Medical Sciences Environmental Sciences Rank 221
69 10,217 Babol University of Medical Sciences, Faculty of Medicine General & Internal Medicine Rank 174
70 10,284 Shahid Beheshti University of Medical Sciences Biochemistry & Molecular Biology Rank 168
71 10,319 Iranian Research Organization for Science and Technology Polymers Rank 69
72 10,741 Isfahan University of Technology Analytical Chemistry Rank 46
73 10,768 Razi University Chemical Engineering Rank 52
74 10,843 Islamic Azad University, Science and Research Branch Networking & Telecommunications Rank 112
75 10,883 Shiraz University of Technology Artificial Intelligence & Image Processing Rank 537
76 11,020 School of Medicine, Zanjan University of Medical Sciences (ZUMS) General & Internal Medicine Rank 180
77 11,236 Semnan University Mechanical Engineering & Transports Rank 109
78 11,254 AbtinBerkeh Scientific Ltd. Company Agronomy & Agriculture Rank 71
79 11,297 University of Kashan Mechanical Engineering & Transports Rank 111
80 11,513 Kharazmi University Chemical Engineering Rank 57
81 11,648 Tarbiat Modares University Energy Rank 311
82 11,702 Islamic Azad University Energy Rank 313
83 11,796 Tehran University of Medical Sciences General & Internal Medicine Rank 193
84 12,130 Shahid Beheshti University Geological & Geomatics Engineering Rank 134
85 12,336 Bu-Ali Sina University Chemical Physics Rank 203
86 12,754 Gonbad Kavous University Logistics & Transportation Rank 38
87 12,756 University of Guilan Civil Engineering Rank 53
88 12,786 Payame Noor University Organic Chemistry Rank 156
89 13,278 Graduate University of Advanced Technology Analytical Chemistry Rank 57
90 13,329 University of Isfahan Artificial Intelligence & Image Processing Rank 639
91 13,580 Shahrood University of Technology Chemical Engineering Rank 75
92 13,609 University of Tabriz Energy Rank 373
93 13,670 Islamic Azad University, Shahr-e Qods Branch Nanoscience & Nanotechnology Rank 451
94 14,031 Esfarayen University of Technology Mechanical Engineering & Transports Rank 132
95 14,158 Kermanshah University of Technology Energy Rank 393
96 14,268 Sharif University of Technology Materials Rank 269
97 14,417 Semnan University Environmental Engineering Rank 72
98 14,489 University of Tabriz Chemical Engineering Rank 82
99 14,588 School of Public Health General & Internal Medicine Rank 220
100 14,615 Kashan University of Medical Sciences Nutrition & Dietetics Rank 89
Showing 1 to 100 of the first 100
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See all 2,534 scientists in Iran

You are seeing the first 100. 2,434 more are on the 2025 single-year list.

Ranks 101 to 2,534The whole list, not only the top 100.
Every year since 2020Single Year and Career Data.
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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 single-year list, University of Tehran has the most listed scientists from Iran, with 119. It is followed by Tehran University of Medical Sciences with 96.

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 2,534 in 2025, a change of +119.6%.

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.