Turkey's Top 2% Scientists 2025

Turkey has 1,564 scientists on the 2025 single-year Top 2% list, up 3.0% from 1,518 in 2024. That places Turkey 22nd in the world by number of listed scientists. İstanbul Teknik Üniversitesi has the most listed scientists (64), followed by Hacettepe Üniversitesi (46).

Single Year

1,564

+46 (+3.0%) vs 2024

Career Data

1,308

+136 (+11.6%) vs 2024

World rank by count

#22

No change vs 2024

Institutes

250

+15 (+6.4%) vs 2024

Scientists in Turkey on the list, by year

The single-year count has grown 82% since 2020.

Single-year list, change on the previous year

2021+34.2%

2022+7.0%

2023+13.3%

2024+8.8%

2025+3.0%

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

Single-year list2025

Show the list

1İstanbul Teknik Üniversitesi64
2Hacettepe Üniversitesi46
3Koç Üniversitesi44
4Karadeniz Technical University40
5Firat Üniversitesi39
6Gazi Üniversitesi39
7Yıldız Teknik Üniversitesi37
8Atatürk Üniversitesi33
9Middle East Technical University (METU)32
10Erciyes Üniversitesi30

All 1,564 scientists

Single-year 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	146	DA Demirbas, Ayhan	Energy Technology Sila Science and Energy	Energy	Rank 5
2	458	GI Gülçin, Ilhami	Aǧrı İbrahim Çeçen Üniversitesi	Medicinal & Biomolecular Chemistry	Rank 2
3	497	SM Sitti, Metin	Koç Üniversitesi	Industrial Engineering & Automation	Rank 1
4	932	BF Bekun, Festus Victor	İstanbul Gelişim Üniversitesi	Environmental Sciences	Rank 20
5	1,034	CI Cakmak, Ismail	Sabancı Üniversitesi	Agronomy & Agriculture	Rank 6
6	1,147	TM Turkyilmazoglu, Mustafa	Hacettepe Üniversitesi	Mechanical Engineering & Transports	Rank 11
7	1,458	DE Dogan, Eyup	Abdullah Gül Üniversitesi	Energy	Rank 40
8	1,500	OA Onan, Aytug	İzmir Kâtip Çelebi Üniversitesi	Artificial Intelligence & Image Processing	Rank 88
9	2,367	SA Sari, Ahmet	Karadeniz Technical University	Energy	Rank 64
10	2,377	KO Karatepe, Osman M.	Eastern Mediterranean University	Sport, Leisure & Tourism	Rank 14
11	2,391	CÖ Cívalek, Ömer	Akdeniz Üniversitesi	Mechanical Engineering & Transports	Rank 25
12	2,827	KC Kahraman, Cengız	İstanbul Teknik Üniversitesi	Artificial Intelligence & Image Processing	Rank 152
13	3,095	AÜ Ağbulut, Ümit	Yıldız Teknik Üniversitesi	Energy	Rank 82
14	3,138	CM Cetin, M.	Ondokuz Mayis Üniversitesi	Environmental Sciences	Rank 74
15	3,464	SA Sengör, A.M. Celal	İstanbul Teknik Üniversitesi	Geochemistry & Geophysics	Rank 43
16	3,603	DM Deveci, Muhammet	Milli Savunma Üniversitesi	Artificial Intelligence & Image Processing	Rank 197
17	4,081	AM Al-Buriahi, Mohammaed Sultan Abdulghaffar	Sakarya Üniversitesi	Applied Physics	Rank 102
18	4,254	VM Varol, Memet	Malatya Turgut Ozal University	Environmental Sciences	Rank 93
19	4,383	BM Balat, Mustafa	Sila Science and Energy Unlimited Company	Energy	Rank 118
20	4,616	PJ Parvizi, Javad	Acıbadem Mehmet Ali Aydınlar Üniversitesi	Orthopedics	Rank 11
21	4,973	GE Goceri, Evgin	Akdeniz Üniversitesi	Artificial Intelligence & Image Processing	Rank 259
22	4,974	YY Yıldırım, Yakup	Biruni Üniversitesi	Optics	Rank 25
23	5,142	AG Arslan, Gökmen	Burdur Mehmet Akif Ersoy Üniversitesi	Social Psychology	Rank 133
24	5,328	SZ Sen, Zekai	İstanbul Medipol Üniversitesi	Environmental Engineering	Rank 22
25	5,340	SC Saka, Cafer	Siirt Üniversitesi	Energy	Rank 146
26	5,886	BA Begag, Abdelaziz Fehmi	Firat Üniversitesi	Mechanical Engineering & Transports	Rank 59
27	5,940	CE Cuce, Erdem	Recep Tayyip Erdogan University	Energy	Rank 160
28	6,032	MÖ Musa Özcan, Mehmet Musa	Selçuk Üniversitesi	Food Science	Rank 40
29	6,036	DM Destek, Mehmet Akif	Gaziantep Üniversitesi	Environmental Sciences	Rank 125
30	6,239	BE Bora, Emre	Dokuz Eylül Üniversitesi	Psychiatry	Rank 145
31	6,355	EÖ Erel, Özcan	Ankara Yildirim Beyazit University	Obstetrics & Reproductive Medicine	Rank 19
32	6,476	KE Kianfar, Ehsan	Istanbul Medeniyet University	Environmental Sciences	Rank 134
33	6,769	DD Delen, Dursun	İstinye Üniversitesi	Information Systems	Rank 33
34	6,780	Övgün, A.	Eastern Mediterranean University	Nuclear & Particle Physics	Rank 83
35	6,960	GO Gençel, Osman Serden	Bartin Üniversitesi	Building & Construction	Rank 58
36	7,149	AR Apak, Reşat	Istanbul University-Cerrahpasa	Analytical Chemistry	Rank 29
37	7,607	EF Ecer, Fatih	Afyon Kocatepe Üniversitesi	Artificial Intelligence & Image Processing	Rank 381
38	7,652	OF Ozogul, Fatih	Çukurova Üniversitesi	Food Science	Rank 58
39	7,843	TM Tuzen, M.	Tokat Gaziosmanpaşa Üniversitesi	Analytical Chemistry	Rank 35
40	7,855	ZG Zengin, Gokhan	Selçuk Üniversitesi	Food Science	Rank 62
41	7,967	ES Ercıslı, Sezai	Atatürk Üniversitesi	Plant Biology & Botany	Rank 88
42	7,996	ÇG Çam, G.	Iskenderun Technical University	Materials	Rank 140
43	8,067	AI Arpaci, Ibrahim	Bandırma Onyedi Eylül University	Education	Rank 108
44	8,144	OI Orhan, I. E.	Gazi Üniversitesi	Medicinal & Biomolecular Chemistry	Rank 27
45	8,316	IM Inç, Mustafa	Biruni Üniversitesi	Optoelectronics & Photonics	Rank 12
46	8,647	Dİ Doymaz, İ̇brahim	Yıldız Teknik Üniversitesi	Food Science	Rank 73
47	8,741	AM Ashrafizadeh, Milad	Sabancı Üniversitesi	Pharmacology & Pharmacy	Rank 43
48	8,837	CA Caglar, Abdullah Emre	Atatürk Üniversitesi	Environmental Sciences	Rank 186
49	9,025	YA Yildiz, Ali Riza	Bursa Uludağ Üniversitesi	Materials	Rank 159
50	9,036	ŞM Şahmaran, Mustafa	Hacettepe Üniversitesi	Building & Construction	Rank 70
51	9,553	IC Işık, Cem	Anadolu Üniversitesi	Environmental Sciences	Rank 206
52	9,919	SB Safaei, Babak	Eastern Mediterranean University	Mechanical Engineering & Transports	Rank 94
53	10,165	AE Agyekum, Ephraim Bonah	Istanbul Okan University	Energy	Rank 274
54	10,397	BG Büyüközkan, Gülҫin	Galatasaray Üniversitesi	Artificial Intelligence & Image Processing	Rank 507
55	10,669	SM Soylak, Mustafa	Erciyes Üniversitesi	Analytical Chemistry	Rank 45
56	10,830	PK Polat, Kemal	Bolu Abant İzzet Baysal Üniversitesi	Artificial Intelligence & Image Processing	Rank 533
57	10,968	SF Selimefendigil, Fatih	Manisa Celâl Bayar Üniversitesi	Mechanical Engineering & Transports	Rank 103
58	11,271	SN Sahiner, Nurettin	Çanakkale Onsekiz Mart Üniversitesi	Polymers	Rank 79
59	11,302	KM Kozak, Metin	Kadir Has Üniversitesi	Sport, Leisure & Tourism	Rank 53
60	11,345	YM Yola, Mehmet Lütfi	Hasan Kalyoncu University	Analytical Chemistry	Rank 49
61	11,407	OS Ozen, Seza	Hacettepe Üniversitesi	Arthritis & Rheumatology	Rank 66
62	11,440	ŞM Şi̇mşek, Mesut	Yıldız Teknik Üniversitesi	Materials	Rank 210
63	11,587	TI Topçu, Ilker Bekir	Eskişehir Osmangazi Üniversitesi	Building & Construction	Rank 89
64	11,725	Bozkurt, Aras	Anadolu Üniversitesi	Education	Rank 160
65	11,746	Akgül, Ali	Siirt Üniversitesi	Applied Mathematics	Rank 36
66	11,886	YÖ Yildirim, Özal	Firat Üniversitesi	Artificial Intelligence & Image Processing	Rank 576
67	11,906	CE Capanoglu, Esra	İstanbul Teknik Üniversitesi	Food Science	Rank 106
68	11,909	KC Kaya, Cengiz	Harran Üniversitesi	Plant Biology & Botany	Rank 148
69	11,957	AE Arikan, Erdal	Bilkent Üniversitesi	Networking & Telecommunications	Rank 123
70	12,018	Karapinar, Erdal	Atilim University	General Mathematics	Rank 40
71	12,314	GM Gul, Muhammet	Istanbul Üniversitesi	Artificial Intelligence & Image Processing	Rank 588
72	12,623	KD Karaboga, Dervis	Erciyes Üniversitesi	Artificial Intelligence & Image Processing	Rank 607
73	13,787	AA Altan, Aytaç	Bülent Ecevit University	Artificial Intelligence & Image Processing	Rank 666
74	13,789	MA Mostafazadeh, Ali	Koç Üniversitesi	Mathematical Physics	Rank 9
75	13,898	AH Akoglu, Haldun	Marmara Üniversitesi Tip Fakültesi	Emergency & Critical Care Medicine	Rank 40
76	14,248	HA Hepbasli, A.	Yaşar Üniversitesi	Energy	Rank 398
77	14,509	GE Güneyisi, Erhan	Harran Üniversitesi	Building & Construction	Rank 113
78	14,524	Atmanli, Alpaslan	Milli Savunma Üniversitesi	Energy	Rank 406
79	14,529	SR Solmaz, Ramazan	Bingöl Üniversitesi	Energy	Rank 407
80	14,594	YY Yilmaz, Yusuf	Recep Tayyip Erdogan University	Gastroenterology & Hepatology	Rank 168
81	14,728	KK Kaygusuz, Kamil	Karadeniz Technical University	Energy	Rank 412
82	14,743	ŞA Şengür, Abdulkadir	Firat Üniversitesi	Artificial Intelligence & Image Processing	Rank 707
83	15,545	AI Akkurt, Iskender	Süleyman Demirel Üniversitesi	General Physics	Rank 118
84	15,621	AM Aydin, Mucahit	Sakarya Üniversitesi	Environmental Sciences	Rank 350
85	15,647	ÇA Çolak, Andaç Batur	Niğde Ömer Halisdemir University	Mechanical Engineering & Transports	Rank 145
86	15,739	ÇE Çelik, Emre	Düzce Üniversitesi	Energy	Rank 436
87	15,782	AZ Aksu, Zümriye	Hacettepe Üniversitesi	Biotechnology	Rank 53
88	16,149	OA Oladipo, Akeem Adeyemi	Eastern Mediterranean University	Chemical Engineering	Rank 96
89	16,251	BM Bildirici, Melike Elif	Yıldız Teknik Üniversitesi	Energy	Rank 450
90	16,410	EA Engin, Atilla	Mustafa Kemal Mah. 2137. Sok. 8/14	Toxicology	Rank 46
91	16,569	ÖE Özbay, Ekmel	Bilkent Üniversitesi	Applied Physics	Rank 331
92	16,584	GV Gökmen, Vural	Hacettepe Üniversitesi	Food Science	Rank 156
93	16,709	EA Elbir, Ahmet M.	İstinye Üniversitesi	Networking & Telecommunications	Rank 174
94	16,732	KG Kutlu Gündoǧdu, Fatma	Milli Savunma Üniversitesi	Artificial Intelligence & Image Processing	Rank 793
95	16,782	KS Keskin, Seda	Koç Üniversitesi	Chemical Engineering	Rank 101
96	16,842	KC Karaman, Ceren	Akdeniz Üniversitesi	Energy	Rank 467
97	17,194	YD Yıldız Durak, Hatice	Necmettin Erbakan Üniversitesi	Education	Rank 223
98	17,300	EM Esen, Mehmet	Firat Üniversitesi	Energy	Rank 479
99	17,423	ES Eryilmaz, Serkan N.	Atilim University	Statistics & Probability	Rank 117
100	17,665	GC Gokceoglu, C.	Kapadokya Üniversitesi	Geological & Geomatics Engineering	Rank 187
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Ranks 101 to 1,564The whole list, not only the top 100.

Every year since 2020Single Year and Career Data.

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Countries with a similar count

Single-year list2025

Denmark2,061 scientists

Hong Kong1,818 scientists

Israel1,637 scientists

Taiwan1,470 scientists

Brazil1,461 scientists

Poland1,434 scientists

Explore other countries

Single-year list2025

Saudi Arabia2,110 scientists

United Arab Emirates663 scientists

All countries on the world map

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 single-year list, İstanbul Teknik Üniversitesi has the most listed scientists from Turkey, with 64. It is followed by Hacettepe Üniversitesi with 46.

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

On the single-year list, Turkey went from 857 scientists in 2020 to 1,564 in 2025, a change of +82.5%.

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.