Turkey's Top 2% Scientists 2026: Career-Long List

Turkey has 1,479 scientists on the 2026 career-long Top 2% list, up 13.1% from 1,308 in 2025. That places Turkey 25th in the world by number of listed scientists. İstanbul Teknik Üniversitesi has the most listed scientists (89), followed by Hacettepe Üniversitesi (56).

Single Year

1,775

+211 (+13.5%) vs 2025

Career Data

1,479

+171 (+13.1%) vs 2025

World rank by count

#25

No change vs 2025

Institutes

246

+6 (+2.5%) vs 2025

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%

2026+13.1%

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%
2026	1,775	+13.5%	1,479	+13.1%

Top 10 institutes in Turkey

By number of listed scientists

Career-long list2026

Show the list

1İstanbul Teknik Üniversitesi89
2Hacettepe Üniversitesi56
3Middle East Technical University (METU)50
4Firat Üniversitesi42
5Karadeniz Technical University39
6Bilkent Üniversitesi37
7Gazi Üniversitesi37
8Koç University37
9Yıldız Teknik Üniversitesi34
10Erciyes Üniversitesi31

All 1,479 scientists

Career-long list2026

Showing the 2026 career-long list. Looking for single-year rankings? See the single-year list

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	121	DA Demirbaş, Ayhan Hilal	Energy Technology Sila Science and Energy	Energy	Rank 1
2	1,798	Gİ Gülçın, İlhami	Atatürk Üniversitesi	Medicinal & Biomolecular Chemistry	Rank 4
3	1,802	CI Cakmak, Ismail	Sabancı Üniversitesi	Agronomy & Agriculture	Rank 6
4	2,303	SM Sitti, Metin	Koç University	Industrial Engineering & Automation	Rank 12
5	2,470	SA Sarı, Ahmet	Karadeniz Technical University	Energy	Rank 30
6	2,486	BA Biswas, Anjan	Karadeniz Technical University	Optics	Rank 14
7	2,691	TM Turkyilmazoglu, Mustafa	Hacettepe Üniversitesi	Mechanical Engineering & Transports	Rank 21
8	3,522	SA Sengör, A.M. Celal	İstanbul Teknik Üniversitesi	Geochemistry & Geophysics	Rank 31
9	4,780	TM Tuzen, M.	Tokat Gaziosmanpaşa Üniversitesi	Analytical Chemistry	Rank 16
10	4,951	ÖE Özbay, Ekmel	Bilkent Üniversitesi	Applied Physics	Rank 129
11	6,538	AZ Aksu, Zümriye	Hacettepe Üniversitesi	Biotechnology	Rank 16
12	6,807	KA Khataee, A.	İstanbul Teknik Üniversitesi	Chemical Engineering	Rank 23
13	6,971	SM Soylak, Mustafa	Erciyes Üniversitesi	Analytical Chemistry	Rank 31
14	7,588	BM Balat, Mustafa	Sila Science and Energy Unlimited Company	Energy	Rank 87
15	7,775	Karatepe, Osman M.	Eastern Mediterranean University	Sport, Leisure & Tourism	Rank 10
16	7,780	HA Hepbasli, A.	Yaşar Üniversitesi	Energy	Rank 89
17	8,774	EÖ Erel, Özcan	Ankara Yildirim Beyazit University	Obstetrics & Reproductive Medicine	Rank 42
18	9,091	KC Kahraman, Cengız	İstanbul Teknik Üniversitesi	Artificial Intelligence & Image Processing	Rank 214
19	10,018	MÖ Musa Özcan, Mehmet Musa	Selçuk Üniversitesi	Food Science	Rank 42
20	10,156	OH Oztop, Hakan Fehmi	Firat Üniversitesi	Mechanical Engineering & Transports	Rank 70
21	10,930	OA Okay, Aral I.	İstanbul Teknik Üniversitesi	Geochemistry & Geophysics	Rank 144
22	11,002	ŞZ Şen, Zekâi	İstanbul Medipol Üniversitesi	Environmental Engineering	Rank 37
23	11,216	Dİ Doymaz, İ̇brahim	Yıldız Teknik Üniversitesi	Food Science	Rank 47
24	11,854	YF Yakuphanoǧlu, Fahrettin	Fytronix Electronic Technologies	Applied Physics	Rank 284
25	12,301	OS Ozen, Seza	Hacettepe Üniversitesi	Arthritis & Rheumatology	Rank 117
26	12,396	BE Bora, Emre	Dokuz Eylül Üniversitesi	Psychiatry	Rank 346
27	12,958	BÜ Bedirhan Üstún, T.	Koç University	Psychiatry	Rank 361
28	13,296	KH Khalil, Hassan K.	Kırşehir Ahi Evran Üniversitesi	Industrial Engineering & Automation	Rank 100
29	13,820	MA Mostafazadeh, Ali	Koç University	Mathematical Physics	Rank 9
30	13,867	YA Yildiz, Ali Riza	Bursa Uludağ Üniversitesi	Materials	Rank 174
31	13,876	AN Adsay, Nazmi Volkan	Koç University	Pathology	Rank 45
32	14,133	KK Kaygusuz, Kamil	Karadeniz Technical University	Energy	Rank 162
33	14,572	PU Pata, Ugur Korkut	Mustafa Kemal Üniversitesi	Environmental Sciences	Rank 96
34	17,179	Karapinar, Erdal	Atilim University	General Mathematics	Rank 48
35	17,224	SM Sarikaya, Mehmet Zeki	Düzce Üniversitesi	General Mathematics	Rank 49
36	17,313	YY Yagci, Yusuf	İstanbul Teknik Üniversitesi	Polymers	Rank 141
37	17,337	CM Canakci, Mustafa	Kocaeli Üniversitesi	Energy	Rank 207
38	17,508	BG Büyüközkan, Gülҫin	Galatasaray Üniversitesi	Artificial Intelligence & Image Processing	Rank 404
39	18,470	OO Okay, Oguz	İstanbul Teknik Üniversitesi	Polymers	Rank 146
40	19,057	SN Sahiner, Nurettin	Çanakkale Onsekiz Mart Üniversitesi	Polymers	Rank 151
41	19,434	OI Orhan, I. E.	Lokman Hekim Üniversitesi	Medicinal & Biomolecular Chemistry	Rank 57
42	19,485	AR Apak, Reşat	Istanbul University-Cerrahpasa	Analytical Chemistry	Rank 100
43	19,548	DE Dogan, Eyup	Abdullah Gül Üniversitesi	Energy	Rank 234
44	20,595	BA Bener, Abdülbari	İstanbul Medipol Üniversitesi	General & Internal Medicine	Rank 316
45	20,811	BE Başar, Erol	Dokuz Eylül Üniversitesi	Neurology & Neurosurgery	Rank 1,556
46	21,191	EM Emre, Murat	İstanbul Tıp Fakültesi	Neurology & Neurosurgery	Rank 1,595
47	21,408	BE Budak, Erhan	Sabancı Üniversitesi	Industrial Engineering & Automation	Rank 156
48	21,423	TI Topçu, Ilker Bekir	Eskişehir Osmangazi Üniversitesi	Building & Construction	Rank 48
49	21,810	SA Sofiyev, A. Heydaroglu	Istanbul Ticaret Üniversitesi	Materials	Rank 274
50	21,884	KM Kozak, Metin	Kadir Has Üniversitesi	Sport, Leisure & Tourism	Rank 34
51	22,607	BA Baykasoğlu, Adil	Dokuz Eylül Üniversitesi	Artificial Intelligence & Image Processing	Rank 521
52	23,061	YH Yazící, Hasan	Academic Hospital	Arthritis & Rheumatology	Rank 178
53	23,161	IM Inc, Mustafa	Firat Üniversitesi	General Physics	Rank 130
54	23,169	ES Ercıslı, Sezai	Atatürk Üniversitesi	Plant Biology & Botany	Rank 262
55	23,360	NM Naziroǧlu, Mustafa	Süleyman Demirel Üniversitesi	Neurology & Neurosurgery	Rank 1,742
56	23,418	YM Yola, Mehmet Lütfi	Hasan Kalyoncu University	Analytical Chemistry	Rank 127
57	23,446	BY Birol, Yucel	Dokuz Eylül Üniversitesi	Materials	Rank 296
58	23,700	KM Kok, M. V.	Middle East Technical University (METU)	Energy	Rank 287
59	23,965	VB Victor Bekun, Festus Vıctor	İstanbul Gelişim Üniversitesi	Environmental Sciences	Rank 167
60	24,234	DD Delen, Dursun	İstinye Üniversitesi	Information Systems	Rank 56
61	26,277	AS Arik, Sabri	Istanbul University-Cerrahpasa	Artificial Intelligence & Image Processing	Rank 615
62	27,256	AE Arikan, Erdal	Bilkent Üniversitesi	Networking & Telecommunications	Rank 237
63	27,455	KM Kobya, Mehmet	Gebze Teknik Üniversitesi	Chemical Engineering	Rank 112
64	27,838	ÖM Özacar, Mahmut	Sakarya Üniversitesi	Chemical Physics	Rank 581
65	27,842	KD Karaboga, Dervis	Erciyes Üniversitesi	Artificial Intelligence & Image Processing	Rank 653
66	28,003	GV Gökmen, Vural	Hacettepe Üniversitesi	Food Science	Rank 130
67	28,100	Aydogdu, Metin	Trakya Üniversitesi	Materials	Rank 355
68	28,284	CM Cetin, M.	Ondokuz Mayis Üniversitesi	Environmental Sciences	Rank 198
69	29,341	KF Kargì, Fikret	Dokuz Eylül Üniversitesi	Biotechnology	Rank 73
70	29,817	AM Arica, Mehmet Yakup	Gazi Üniversitesi	Biotechnology	Rank 75
71	30,455	ÔZ Ôniş, Ziya	Koç Üniversitesi	International Relations	Rank 27
72	30,485	ÜE Übeylï, Elif Derya	TOBB University of Economics and Technology	Artificial Intelligence & Image Processing	Rank 714
73	30,620	DA Deni̇zli̇, Adil	Hacettepe Üniversitesi	Analytical Chemistry	Rank 177
74	30,738	ŞM Şi̇mşek, Mesut	Yıldız Teknik Üniversitesi	Materials	Rank 395
75	31,007	OA Onan, Aytuǧ	Izmir Yüksek Teknoloji Enstitüsü	Artificial Intelligence & Image Processing	Rank 723
76	31,832	CB Carr, Brian Irving	Inönü Üniversitesi	Oncology & Carcinogenesis	Rank 1,391
77	31,916	PK Polat, Kemal	Bolu Abant İzzet Baysal Üniversitesi	Artificial Intelligence & Image Processing	Rank 745
78	32,357	GC Gokceoglu, C.	Kapadokya Üniversitesi	Geological & Geomatics Engineering	Rank 157
79	32,763	SF Selimefendigil, Fatih	Manisa Celâl Bayar Üniversitesi	Mechanical Engineering & Transports	Rank 219
80	33,067	KS Keskin, Seda	Koç University	Chemical Engineering	Rank 133
81	33,130	ÖS Özkâr, Saim	Middle East Technical University (METU)	Organic Chemistry	Rank 617
82	33,363	YY Yilmaz, Yusuf	Recep Tayyip Erdogan University	Gastroenterology & Hepatology	Rank 503
83	34,021	GA Gul̈, Ahmet	İstanbul Tıp Fakültesi	Arthritis & Rheumatology	Rank 256
84	34,642	ŞM Şahmaran, Mustafa	Hacettepe Üniversitesi	Building & Construction	Rank 81
85	34,793	YM Yamamoto, Masahiro	Zonguldak Bulent Ecevit University	Applied Mathematics	Rank 78
86	35,286	ŞA Şahin, Ahmet Z.	İstanbul Teknik Üniversitesi	Energy	Rank 462
87	35,526	ES Eryilmaz, Serkan N.	Atilim University	Statistics & Probability	Rank 157
88	35,973	OA Onat, Altan	Istanbul Üniversitesi	Cardiovascular System & Hematology	Rank 1,417
89	37,020	YE Yeşİlada, Erdem	Yeditepe University	Medicinal & Biomolecular Chemistry	Rank 106
90	37,491	KC Kaya, Cengiz	Harran Üniversitesi	Agronomy & Agriculture	Rank 168
91	37,564	KN Khan, Navee Ahmed	İstinye Üniversitesi	Microbiology	Rank 941
92	37,858	AB Akay, B.	Erciyes Üniversitesi	Artificial Intelligence & Image Processing	Rank 878
93	38,055	AE Akpınar, Ebru Kavak	Firat Üniversitesi	Energy	Rank 500
94	38,810	EÖ Ergönül, Önder Onder	Koç University	Microbiology	Rank 968
95	38,944	YI Yǐlmaz, Iśik Şı	Cumhuriyet Üniversitesi	Geological & Geomatics Engineering	Rank 192
96	38,961	BA Baykal, Abdulhadi	İstanbul Aydın Üniversitesi	Materials	Rank 520
97	39,280	VM Varol, Memet	Malatya Turgut Ozal University	Environmental Sciences	Rank 283
98	39,446	DH Direskeneli, Haner	Marmara Üniversitesi	Arthritis & Rheumatology	Rank 279
99	39,838	KS Kahraman, Sair	Hacettepe Üniversitesi	Geological & Geomatics Engineering	Rank 196
100	39,973	YE Yildirim Erbil, H. Yildirim	Gebze Teknik Üniversitesi	Chemical Physics	Rank 807
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Ranks 101 to 1,479The whole list, not only the top 100.

Every year since 2020Single Year and Career Data.

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Countries with a similar count

Career-long list2026

Poland1,581 scientists

Austria1,566 scientists

Norway1,557 scientists

Iran1,380 scientists

Brazil1,304 scientists

Greece1,243 scientists

Explore other countries

Career-long list2026

Israel2,293 scientists

Saudi Arabia1,071 scientists

United Arab Emirates470 scientists

Qatar197 scientists

Jordan128 scientists

Cyprus119 scientists

All countries on the world map

Frequently asked questions

How many scientists from Turkey are in the 2026 Stanford Top 2% list?

1,775 scientists affiliated with Turkey are on the 2026 single-year list, and 1,479 are on the career-long list.

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

On the 2026 career-long list, İstanbul Teknik Üniversitesi has the most listed scientists from Turkey, with 89. It is followed by Hacettepe Üniversitesi with 56.

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 1,479 in 2026, a change of +140.9%.

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.