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

Turkey has 1,308 scientists on the 2025 career-long Top 2% list, up 11.6% from 1,172 in 2024. That places Turkey 25th in the world by number of listed scientists. İstanbul Teknik Üniversitesi has the most listed scientists (79), followed by Middle East Technical University (METU) (51).

Single Year

1,564

+46 (+3.0%) vs 2024

Career Data

1,308

+136 (+11.6%) vs 2024

World rank by count

#25

No change vs 2024

Institutes

240

+26 (+12.1%) vs 2024

Scientists in Turkey on the list, by year

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

Career-long list, change on the previous year

2021+34.9%

2022+9.4%

2023+14.8%

2024+12.7%

2025+11.6%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	857		614
2021	1,150	+34.2%	828	+34.9%
2022	1,231	+7.0%	906	+9.4%
2023	1,395	+13.3%	1,040	+14.8%
2024	1,518	+8.8%	1,172	+12.7%
2025	1,564	+3.0%	1,308	+11.6%

Top 10 institutes in Turkey

By number of listed scientists

Career-long list2025

Show the list

1İstanbul Teknik Üniversitesi79
2Middle East Technical University (METU)51
3Hacettepe Üniversitesi47
4Firat Üniversitesi41
5Gazi Üniversitesi37
6Bilkent Üniversitesi35
7Koç Üniversitesi32
8Karadeniz Technical University31
9Erciyes Üniversitesi25
10Yıldız Teknik Üniversitesi25

All 1,308 scientists

Career-long list2025

The first 100 are free to browse.

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Rank in Turkey	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	117	DA Demirbas, Ayhan	Energy Technology Sila Science and Energy	Energy	Rank 1
2	1,872	CI Cakmak, Ismail	Sabancı Üniversitesi	Agronomy & Agriculture	Rank 6
3	2,280	GI Gülçin, Ilhami	Aǧrı İbrahim Çeçen Üniversitesi	Medicinal & Biomolecular Chemistry	Rank 5
4	2,582	SA Sari, Ahmet	Karadeniz Technical University	Energy	Rank 29
5	2,658	SM Sitti, Metin	Koç Üniversitesi	Industrial Engineering & Automation	Rank 13
6	2,965	TM Turkyilmazoglu, Mustafa	Hacettepe Üniversitesi	Mechanical Engineering & Transports	Rank 22
7	3,474	PJ Parvizi, Javad	Acıbadem Mehmet Ali Aydınlar Üniversitesi	Orthopedics	Rank 13
8	3,804	SA Sengör, A.M. Celal	İstanbul Teknik Üniversitesi	Geochemistry & Geophysics	Rank 34
9	4,705	TM Tuzen, M.	Tokat Gaziosmanpaşa Üniversitesi	Analytical Chemistry	Rank 18
10	4,781	ÖE Özbay, Ekmel	Bilkent Üniversitesi	Applied Physics	Rank 131
11	5,945	AZ Aksu, Zümriye	Hacettepe Üniversitesi	Biotechnology	Rank 15
12	6,092	CÖ Cívalek, Ömer	Akdeniz Üniversitesi	Mechanical Engineering & Transports	Rank 41
13	6,794	SM Soylak, Mustafa	Erciyes Üniversitesi	Analytical Chemistry	Rank 30
14	7,766	BM Balat, Mustafa	Sila Science and Energy Unlimited Company	Energy	Rank 84
15	7,829	HA Hepbasli, A.	Yaşar Üniversitesi	Energy	Rank 86
16	8,801	KO Karatepe, Osman M.	Eastern Mediterranean University	Sport, Leisure & Tourism	Rank 12
17	9,214	EÖ Erel, Özcan	Ankara Yildirim Beyazit University	Obstetrics & Reproductive Medicine	Rank 41
18	10,443	KC Kahraman, Cengız	İstanbul Teknik Üniversitesi	Artificial Intelligence & Image Processing	Rank 225
19	10,920	BA Begag, Abdelaziz Fehmi	Firat Üniversitesi	Mechanical Engineering & Transports	Rank 74
20	10,978	OA Okay, Aral I.	İstanbul Teknik Üniversitesi	Geochemistry & Geophysics	Rank 145
21	11,291	MÖ Musa Özcan, Mehmet Musa	Selçuk Üniversitesi	Food Science	Rank 46
22	11,430	Dİ Doymaz, İ̇brahim	Yıldız Teknik Üniversitesi	Food Science	Rank 47
23	11,870	YF Yakuphanoǧlu, Fahrettin	Firat Üniversitesi	Applied Physics	Rank 288
24	12,052	SZ Sen, Zekai	İstanbul Medipol Üniversitesi	Environmental Engineering	Rank 38
25	12,985	KH Khalil, Hassan K.	Kırşehir Ahi Evran Üniversitesi	Industrial Engineering & Automation	Rank 94
26	13,365	AN Adsay, Nazmi Volkan	Koç Üniversitesi	Pathology	Rank 45
27	13,451	OS Ozen, Seza	Hacettepe Üniversitesi	Arthritis & Rheumatology	Rank 123
28	13,612	BE Bora, Emre	Dokuz Eylül Üniversitesi	Psychiatry	Rank 380
29	14,480	MA Mostafazadeh, Ali	Koç Üniversitesi	Mathematical Physics	Rank 9
30	14,686	KK Kaygusuz, Kamil	Karadeniz Technical University	Energy	Rank 160
31	16,188	CM Canakci, Mustafa	Kocaeli Üniversitesi	Energy	Rank 180
32	16,408	YA Yildiz, Ali Riza	Bursa Uludağ Üniversitesi	Materials	Rank 200
33	16,548	YY Yagci, Yusuf	İstanbul Teknik Üniversitesi	Polymers	Rank 135
34	17,423	SM Sarikaya, Mehmet Zeki	Düzce Üniversitesi	General Mathematics	Rank 47
35	18,766	OO Okay, Oguz	İstanbul Teknik Üniversitesi	Polymers	Rank 150
36	18,950	BG Büyüközkan, Gülҫin	Galatasaray Üniversitesi	Artificial Intelligence & Image Processing	Rank 424
37	19,313	Karapinar, Erdal	Atilim University	General Mathematics	Rank 59
38	20,438	EM Emre, Murat	İstanbul Tıp Fakültesi	Neurology & Neurosurgery	Rank 1,558
39	20,472	BA Bener, Abdülbari	İstanbul Medipol Üniversitesi	General & Internal Medicine	Rank 306
40	20,507	SN Sahiner, Nurettin	Çanakkale Onsekiz Mart Üniversitesi	Polymers	Rank 168
41	20,762	BE BaÅŸar, Erol	Dokuz Eylül Üniversitesi	Neurology & Neurosurgery	Rank 1,585
42	21,343	TI Topçu, Ilker Bekir	Eskişehir Osmangazi Üniversitesi	Building & Construction	Rank 45
43	22,113	BE Budak, Erhan	Sabancı Üniversitesi	Industrial Engineering & Automation	Rank 156
44	22,278	AR Apak, Reşat	Istanbul University-Cerrahpasa	Analytical Chemistry	Rank 121
45	22,435	OI Orhan, I. E.	Gazi Üniversitesi	Medicinal & Biomolecular Chemistry	Rank 67
46	22,622	BA Baykasoğlu, Adil	Dokuz Eylül Üniversitesi	Artificial Intelligence & Image Processing	Rank 485
47	22,848	YH Yazící, Hasan	Academic Hospital	Arthritis & Rheumatology	Rank 182
48	22,923	KM Kozak, Metin	Kadir Has Üniversitesi	Sport, Leisure & Tourism	Rank 32
49	23,129	DE Dogan, Eyup	Abdullah Gül Üniversitesi	Energy	Rank 266
50	23,302	KM Kok, M. V.	Middle East Technical University (METU)	Energy	Rank 268
51	23,644	BY Birol, Yucel	Dokuz Eylül Üniversitesi	Materials	Rank 291
52	25,178	AS Arik, Sabri	Istanbul University-Cerrahpasa	Artificial Intelligence & Image Processing	Rank 542
53	25,350	NM Nazıroğlu, Mustafa	Süleyman Demirel Üniversitesi	Neurology & Neurosurgery	Rank 1,915
54	25,493	IM Inç, Mustafa	Biruni Üniversitesi	Optoelectronics & Photonics	Rank 51
55	26,152	YM Yola, Mehmet Lütfi	Hasan Kalyoncu University	Analytical Chemistry	Rank 150
56	26,880	AE Arikan, Erdal	Bilkent Üniversitesi	Networking & Telecommunications	Rank 227
57	27,030	DD Delen, Dursun	İstinye Üniversitesi	Information Systems	Rank 63
58	27,594	ES Ercıslı, Sezai	Atatürk Üniversitesi	Plant Biology & Botany	Rank 321
59	27,681	KM Kobya, Mehmet	Gebze Teknik Üniversitesi	Chemical Engineering	Rank 109
60	27,700	KD Karaboga, Dervis	Erciyes Üniversitesi	Artificial Intelligence & Image Processing	Rank 601
61	27,847	KF Kargì, Fikret	Dokuz Eylül Üniversitesi	Biotechnology	Rank 66
62	27,930	Aydogdu, Metin	Trakya Üniversitesi	Materials	Rank 342
63	28,333	ÜE Übeylï, Elif Derya	TOBB University of Economics and Technology	Artificial Intelligence & Image Processing	Rank 617
64	28,671	AM Arica, Mehmet Yakup	Gazi Üniversitesi	Biotechnology	Rank 68
65	28,988	ÖM Özacar, Mahmut	Sakarya Üniversitesi	Chemical Physics	Rank 627
66	29,268	ŞM Şi̇mşek, Mesut	Yıldız Teknik Üniversitesi	Materials	Rank 362
67	30,032	CB Carr, Brian Irving	Inönü Üniversitesi Tip Fakültesi	Oncology & Carcinogenesis	Rank 1,330
68	30,593	GV Gökmen, Vural	Hacettepe Üniversitesi	Food Science	Rank 131
69	30,881	FT Faist, Thomas	Middle East Technical University (METU)	Sociology	Rank 82
70	31,426	BF Bekun, Festus Victor	İstanbul Gelişim Üniversitesi	Environmental Sciences	Rank 199
71	32,473	DA Denizli, Adil	Hacettepe Üniversitesi	Analytical Chemistry	Rank 191
72	33,781	OA Onan, Aytug	İzmir Kâtip Çelebi Üniversitesi	Artificial Intelligence & Image Processing	Rank 740
73	33,974	GC Gokceoglu, C.	Kapadokya Üniversitesi	Geological & Geomatics Engineering	Rank 157
74	33,976	GA Gul̈, Ahmet	İstanbul Tıp Fakültesi	Arthritis & Rheumatology	Rank 257
75	34,234	CM Cetin, M.	Ondokuz Mayis Üniversitesi	Environmental Sciences	Rank 223
76	35,045	ÖS Özkâr, Saim	Middle East Technical University (METU)	Organic Chemistry	Rank 660
77	35,542	ŞA Şahin, Ahmet Z.	İstanbul Teknik Üniversitesi	Energy	Rank 450
78	35,733	YM Yamamoto, Masahiro	Bülent Ecevit University	Applied Mathematics	Rank 79
79	36,135	OA Onat, Altan	Istanbul Üniversitesi	Cardiovascular System & Hematology	Rank 1,425
80	36,401	ÔZ Ôniş, Ziya	Koç Üniversitesi	International Relations	Rank 31
81	37,288	KS Keskin, Seda	Koç Üniversitesi	Chemical Engineering	Rank 146
82	37,327	PK Polat, Kemal	Bolu Abant İzzet Baysal Üniversitesi	Artificial Intelligence & Image Processing	Rank 824
83	38,032	YE Yeşİlada, Erdem	Yeditepe University	Medicinal & Biomolecular Chemistry	Rank 110
84	38,113	AE Akpınar, Ebru Kavak	Firat Üniversitesi	Energy	Rank 480
85	38,398	SF Selimefendigil, Fatih	Manisa Celâl Bayar Üniversitesi	Mechanical Engineering & Transports	Rank 247
86	38,746	ES Eryilmaz, Serkan N.	Atilim University	Statistics & Probability	Rank 163
87	38,918	ŞM Şahmaran, Mustafa	Hacettepe Üniversitesi	Building & Construction	Rank 84
88	39,690	AB Akay, B.	Erciyes Üniversitesi	Artificial Intelligence & Image Processing	Rank 871
89	39,697	YI Yǐlmaz, Iśik Şı	Cumhuriyet Üniversitesi	Geological & Geomatics Engineering	Rank 189
90	39,800	YA Yıldırım, Ahmet	Ege Üniversitesi	Numerical & Computational Mathematics	Rank 56
91	40,027	KN Khan, Navee Ahmed	İstinye Üniversitesi	Microbiology	Rank 1,010
92	40,350	YE Yildirim Erbil, H. Yildirim	Gebze Teknik Üniversitesi	Chemical Physics	Rank 831
93	40,590	EÖ Ergönül, Önder Onder	VKV Amerikan Hastanesi	Microbiology	Rank 1,024
94	40,689	DH Direskeneli, Haner	Marmara Üniversitesi	Arthritis & Rheumatology	Rank 295
95	40,721	MM Maskan, Medeni	Gaziantep Üniversitesi	Food Science	Rank 183
96	41,160	BE Biglieri, Ezio	Boğaziçi Üniversitesi	Networking & Telecommunications	Rank 346
97	41,284	YY Yilmaz, Yusuf	Recep Tayyip Erdogan University	Gastroenterology & Hepatology	Rank 620
98	41,287	BA Baykal, Abdulhadi	İstanbul Aydın Üniversitesi	Materials	Rank 540
99	41,477	AH Arslan, Hüseyin G.	İstanbul Medipol Üniversitesi	Networking & Telecommunications	Rank 348
100	41,696	KS Kahraman, Sair	Hacettepe Üniversitesi	Geological & Geomatics Engineering	Rank 198
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Countries with a similar count

Career-long list2025

Hong Kong1,482 scientists

Austria1,472 scientists

Poland1,412 scientists

Iran1,201 scientists

Brazil1,195 scientists

New Zealand1,167 scientists

Explore other countries

Career-long list2025

Israel2,204 scientists

Saudi Arabia850 scientists

United Arab Emirates389 scientists

Qatar176 scientists

Cyprus113 scientists

Jordan106 scientists

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Frequently asked questions

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

1,564 scientists affiliated with Turkey are on the 2025 single-year list, and 1,308 are on the career-long list.

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

On the 2025 career-long list, İstanbul Teknik Üniversitesi has the most listed scientists from Turkey, with 79. It is followed by Middle East Technical University (METU) with 51.

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

On the career-long list, Turkey went from 614 scientists in 2020 to 1,308 in 2025, a change of +113.0%.

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.