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

Nigeria has 142 scientists on the 2025 career-long Top 2% list, up 21.4% from 117 in 2024. That places Nigeria 49th in the world by number of listed scientists. University of Ibadan has the most listed scientists (12), followed by University of Nigeria (10).

Single Year

291

+58 (+24.9%) vs 2024

Career Data

142

+25 (+21.4%) vs 2024

World rank by count

#49

No change vs 2024

Institutes

+10 (+18.5%) vs 2024

Scientists in Nigeria on the list, by year

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

Career-long list, change on the previous year

2021+73.8%

2022+19.2%

2023+13.8%

2024+18.2%

2025+21.4%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	71		42
2021	121	+70.4%	73	+73.8%
2022	150	+24.0%	87	+19.2%
2023	186	+24.0%	99	+13.8%
2024	233	+25.3%	117	+18.2%
2025	291	+24.9%	142	+21.4%

Top 10 institutes in Nigeria

By number of listed scientists

Career-long list2025

Show the list

All 142 scientists

Career-long list2025

The first 100 are free to browse.

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Rank in Nigeria	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	16,744	OB Olusanya, Bolajoko O.	Centre for Healthy Start Initiative	General & Internal Medicine	Rank 252
2	21,804	OG Oboh, Ganiyu	Federal University of Technology, Akure	Food Science	Rank 89
3	26,625	OE Oguzie, Emeka Emmanuel	Federal University of Technology, Owerri	Materials	Rank 324
4	31,477	OA Olajire, Abass Abiola	Ladoke Akintola University of Technology	Environmental Sciences	Rank 201
5	33,454	FE Farombi, Ebenezer Olatunde	University of Ibadan	Toxicology	Rank 129
6	37,052	EE Ezugwu, Emmanuel Okechukwu	Air Force Institute of Technology	Mechanical Engineering & Transports	Rank 236
7	43,439	OM Owolabi, Mayowa O.	University College Hospital, Ibadan	Neurology & Neurosurgery	Rank 3,053
8	55,672	OP Ozili, Peterson K.	Central Bank of Nigeria	Finance	Rank 92
9	63,922	OO Onwujekwe, Obinna E.	University of Nigeria	Health Policy & Services	Rank 153
10	64,594	OK Owolabi, Kolade Matthew	Federal University of Technology, Akure	Mathematical Physics	Rank 34
11	68,521	SH Salihu, Hamisu Mohammed	Kano Independent Research Centre Trust	Obstetrics & Reproductive Medicine	Rank 657
12	70,226	Lawal, Olayide Samuel	Federal University, Oye-Ekiti	Food Science	Rank 371
13	76,168	CC Chidume, Charles Ejike	African University of Science and Technology	General Mathematics	Rank 356
14	76,766	OI Okeke, Iruka N.	University of Ibadan	Microbiology	Rank 1,910
15	78,073	NS Nathaniel, Solomon Prince	University of Lagos	Environmental Sciences	Rank 568
16	78,838	UC Uneke, Chigozie Jesse	Ebonyi State University	General & Internal Medicine	Rank 976
17	80,110	OF Okonofua, Friday Ebhodaghe	Women's Health and Action Research Centre	Obstetrics & Reproductive Medicine	Rank 766
18	84,610	AA Adewuya, Abiodun Olugbenga	Lagos State University	Psychiatry	Rank 1,509
19	93,666	AE Ameh, Emmanuel A.	National Hospital, Abuja	Pediatrics	Rank 489
20	93,830	MC Madu, Christian N.	University of Nigeria	Business & Management	Rank 1,019
21	105,973	AI Animasaun, Isaac Lare	Federal University of Technology, Akure	Mechanical Engineering & Transports	Rank 755
22	108,510	OB Osuntokun, Benjamin O.	University College Hospital, Ibadan	General & Internal Medicine	Rank 1,355
23	113,355	EN Eddy, Nnabuk Okon	University of Nigeria	Energy	Rank 1,609
24	118,916	EJ Egbueri, Johnbosco C.	Chukwuemeka Odumegwu Ojukwu University	Environmental Sciences	Rank 894
25	124,831	OS Obaro, Stephen K.	International Foundation Against Infectious Disease in Nigeria (IFAIN)	Microbiology	Rank 3,079
26	127,766	BO Bello, Olugbenga Solomon	Ladoke Akintola University of Technology	Environmental Sciences	Rank 978
27	127,809	ON Oladoja, Nurudeen Abiola	Adekunle Ajasin University	Chemical Engineering	Rank 612
28	134,005	FM Folayan, Morenike O.	Nigerian Institute of Medical Research	Dentistry	Rank 786
29	135,035	AK Alaneme, Kenneth Kanayo	Federal University of Technology, Akure	Materials	Rank 1,886
30	137,031	IM Iwu, Maurice M.	Bioresources Institute of Nigeria	Medicinal & Biomolecular Chemistry	Rank 498
31	138,713	AI Abubakar, Ismaila Rimi	Ahmadu Bello University	Environmental Sciences	Rank 1,093
32	142,121	MJ Mbagwu, Joe S.C.	University of Nigeria	Agronomy & Agriculture	Rank 776
33	146,461	UK Ukwaja, Kingsley Nnanna	Alex Ekwueme Federal University, Ndufu-Alike	General & Internal Medicine	Rank 1,839
34	146,830	LC Loto, Cleophas Akintoye	Covenant University	Materials	Rank 2,071
35	147,715	SO Sunday, O. Oyedepo	Bells University of Technology	Energy	Rank 2,162
36	148,306	KB Kang, Biau T.	International Institute of Tropical Agriculture	Agronomy & Agriculture	Rank 822
37	149,858	SA Sowunmi, Akintunde	College of Medicine, University of Ibadan	Tropical Medicine	Rank 337
38	152,919	IC Iwegbue, Chukwujindu Maxwell Azubuike	Delta State University Nigeria	Environmental Sciences	Rank 1,242
39	155,640	AA Adaramoye, A. O.	College of Medicine, University of Ibadan	Toxicology	Rank 716
40	161,547	ST Sulaıman, Tukur Abdulkadir	Federal University Dutse	Optoelectronics & Photonics	Rank 543
41	164,554	MA Menkir, Abebe	International Institute of Tropical Agriculture	Plant Biology & Botany	Rank 2,413
42	166,366	LR Loto, Roland Tolulope	Covenant University	Materials	Rank 2,371
43	172,359	SD Smith, Douglas K.(Skip)	American University of Nigeria	Nuclear Medicine & Medical Imaging	Rank 1,558
44	175,666	AA Adefegha, Adeniyi S.	Federal University of Technology, Akure	Food Science	Rank 1,037
45	177,260	YA Yusuf, Abdullahi	Federal University Dutse	General Physics	Rank 1,118
46	177,610	IC Idumah, Christopher Igwe	Nnamdi Azikiwe University	Polymers	Rank 1,596
47	179,246	LA Lateef, A.	Ladoke Akintola University of Technology	Plant Biology & Botany	Rank 2,637
48	183,874	TO Tomori, Oyewale	Redeemer‘s University	General & Internal Medicine	Rank 2,352
49	184,696	OJ Ogbonna, James Chukwuma	State University of Medical and Applied Sciences Igbo-Eno	Biotechnology	Rank 595
50	184,748	OF Okieimen, Felix Ebhodaghe	University of Benin	Polymers	Rank 1,652
51	185,577	SN Sanginga, Ntenranya	International Institute of Tropical Agriculture	Agronomy & Agriculture	Rank 1,064
52	189,418	LA Lawal, Abdulazeez T.	Fountain University	Analytical Chemistry	Rank 1,517
53	189,487	HA Habib, Abdulrazaq Garba	Bayero University	Tropical Medicine	Rank 427
54	191,441	IJ Ighalo, Joshua O.	Nnamdi Azikiwe University	Environmental Sciences	Rank 1,634
55	193,769	SA Sanni, Abiodun Isiaka	University of Ibadan	Food Science	Rank 1,148
56	195,187	JB Jha, Basant Kumar	Ahmadu Bello University	Mechanical Engineering & Transports	Rank 1,456
57	196,279	AJ Agbenin, John O.	Federal University, Oye-Ekiti	Agronomy & Agriculture	Rank 1,145
58	197,619	AP Akah, Peter Achunike	University of Nigeria	Medicinal & Biomolecular Chemistry	Rank 769
59	201,486	AS Abarikwu, Sunny Okechukwu	University of Port Harcourt	Toxicology	Rank 969
60	203,132	Ilesanmi, Olayinka Stephen	College of Medicine, University of Ibadan	General & Internal Medicine	Rank 2,613
61	206,490	OM Osilike, Micah Okwuchukwu	University of Nigeria	General Mathematics	Rank 1,385
62	207,975	FO Fagbenro, Oyedapo Adewale	Federal University of Technology, Akure	Fisheries	Rank 617
63	208,172	EA Edet, Aniekan E.	University of Calabar	Environmental Engineering	Rank 1,137
64	213,106	Attama Anthony, A. Amaechi	University of Nigeria	Pharmacology & Pharmacy	Rank 2,068
65	213,775	OO Ohunakin, Olayinka Soledayo	Covenant University	Energy	Rank 3,307
66	213,825	AW Adeyemo, Wasiu Lanre	University of Lagos	Dentistry	Rank 1,317
67	216,479	Ogoina, Dimie	Niger Delta University	Tropical Medicine	Rank 494
68	218,366	IE Ibem, Eziyi Offia	University of Nigeria	Building & Construction	Rank 656
69	223,481	AD Akinyele, Daniel Oluwaseun	Olusegun Agagu University of Science and Technology	Energy	Rank 3,493
70	223,986	AI Atadashi, I. M.	Adamawa State University, Mubi	Energy	Rank 3,503
71	224,873	Yusuff, Adeyinka Sikiru	Afe Babalola University	Environmental Sciences	Rank 1,978
72	225,501	IU Ishiaku, Umaru Semo	Ahmadu Bello University	Polymers	Rank 2,019
73	226,451	NO Nwafor, O. M.I.	Federal University of Technology, Owerri	Energy	Rank 3,535
74	229,139	AA Adeneye, Adejuwon Adewale	Lagos State University	Medicinal & Biomolecular Chemistry	Rank 965
75	233,397	TA Taiwo, Adewale Matthew	Federal University of Agriculture, Abeokuta	Environmental Sciences	Rank 2,072
76	235,874	AT Ayodele, Temitope Raphael	University of Ibadan	Energy	Rank 3,697
77	237,622	RA Rafindadi, Abdulkadir Abdulrashid	Usmanu Danfodiyo University	Energy	Rank 3,733
78	237,717	AK Adebowale, Kayode Oyebode	University of Ibadan	Food Science	Rank 1,475
79	242,109	AS Atawodi, Sunday Ene Ojo	Ahmadu Bello University	Plant Biology & Botany	Rank 3,637
80	246,512	NI Nnorom, Innocent C.	Abia State University	Environmental Sciences	Rank 2,193
81	248,431	AE Adeyeye, Emmanuel Ilesanmi	Ekiti State University	Food Science	Rank 1,555
82	249,945	AV Aletor, Valentine Ayobore	Federal University of Technology, Akure	Food Science	Rank 1,567
83	250,435	PL Popoola, L. T.	Afe Babalola University	Environmental Sciences	Rank 2,240
84	251,270	AE Adekeye, Emmanuel Oladepo	Etomie Oral and Maxillofacial Specialist Hospital	Dentistry	Rank 1,585
85	256,722	MM Meremikwu, Martin Madu	University of Calabar	General & Internal Medicine	Rank 3,357
86	257,277	OC Okoye, Chukwuemeka Madubuko Ijeoma	University of Nigeria	General Physics	Rank 1,640
87	262,124	OK Osinubi, Kolawole Juwonlo M.	Ahmadu Bello University	Geological & Geomatics Engineering	Rank 1,345
88	264,254	OD Ogunniyi, David Sunday	University of Ilorin	Polymers	Rank 2,389
89	264,441	HR Horton, Robin	Obafemi Awolowo University	Cultural Studies	Rank 111
90	269,732	OL Olatomiwa, Lanre Joseph	Federal University of Technology, Minna	Energy	Rank 4,345
91	271,583	SL Salako, Lateef A.	University of Ibadan	Tropical Medicine	Rank 632
92	272,707	YM Yakubu, Musa Toyin	University of Ilorin	Medicinal & Biomolecular Chemistry	Rank 1,252
93	273,681	IA Ikot, Akpan Ndem	University of Port Harcourt	Nuclear & Particle Physics	Rank 4,164
94	279,306	AT Ajiboye, Taofeek Olakunle	Nile University of Nigeria	Toxicology	Rank 1,383
95	282,026	Fagbamigbe, Adeniyi Francis	College of Medicine, University of Ibadan	General & Internal Medicine	Rank 3,696
96	287,253	TA Tella, Adeyinka	University of Ilorin	Information & Library Sciences	Rank 193
97	290,589	OS Olatunji, Sunday Olusanya	Adekunle Ajasin University	Artificial Intelligence & Image Processing	Rank 6,555
98	291,984	AA Ademiluyi, Adedayo Oluwaseun	Federal University of Technology, Akure	Food Science	Rank 1,864
99	293,923	AO Abiola, Olusegun Kehinde	Federal University of Petroleum Resources, Effurun	Energy	Rank 4,883
100	294,576	OO Oke, Olusegun L.	Obafemi Awolowo University	Food Science	Rank 1,891
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You are seeing the first 100. 42 more are on the 2025 career-long list.

Ranks 101 to 142The 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 list2025

Romania220 scientists

Slovenia217 scientists

Qatar176 scientists

Ukraine124 scientists

Serbia115 scientists

Cyprus113 scientists

Explore other countries

Career-long list2025

Liberia44 scientists

Ghana32 scientists

South Africa896 scientists

Egypt579 scientists

Kenya51 scientists

Morocco49 scientists

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Frequently asked questions

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

291 scientists affiliated with Nigeria are on the 2025 single-year list, and 142 are on the career-long list.

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

On the 2025 career-long list, University of Ibadan has the most listed scientists from Nigeria, with 12. It is followed by University of Nigeria with 10.

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

On the career-long list, Nigeria went from 42 scientists in 2020 to 142 in 2025, a change of +238.1%.

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.