Nigeria's Top 2% Scientists 2021: Career-Long List

Nigeria has 73 scientists on the 2021 career-long Top 2% list, up 73.8% from 42 in 2020. That places Nigeria 50th in the world by number of listed scientists, up 9 places. University of Ibadan has the most listed scientists (9), followed by University of Nigeria (8).

Single Year

121

+50 (+70.4%) vs 2020

Career Data

+31 (+73.8%) vs 2020

World rank by count

#50

up 9 places vs 2020

Institutes

+11 (+44.0%) vs 2020

Scientists in Nigeria on the list, by year

The career-long count has grown 74% 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 list2021

Show the list

All 73 scientists

Career-long list2021

Everyone on the list, free to browse.

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Rank in Nigeria	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	9,102	GO Gureje, Oye	University of Ibadan	Psychiatry	Rank 261
2	28,975	OE Oguzie, Emeka E.	Federal University of Technology, Owerri	Materials	Rank 344
3	33,663	OB Olusanya, Bolajoko O.	Centre for Healthy Start Initiative	Pediatrics	Rank 152
4	36,943	OG Oboh, Ganiyu	Federal University of Technology, Akure	Food Science	Rank 125
5	38,578	EE Ezugwu, Emmanuel O.	Air Force Institute of Technology	Mechanical Engineering & Transports	Rank 216
6	54,272	FE Farombi, Ebenezer O.	College of Medicine, University of Ibadan	Toxicology	Rank 241
7	56,111	OA Olajire, A. A.	Ladoke Akintola University of Technology	Environmental Sciences	Rank 283
8	72,955	LL Luiselli, Luca	Rivers State University of Science and Technology	Ecology	Rank 1,170
9	73,337	CC Chidume, Charles E.	African University of Science and Technology	General Mathematics	Rank 332
10	74,081	Lawal, Olayide Samuel	Federal University, Oye-Ekiti	Food Science	Rank 307
11	74,369	AR Adegbola, Richard	Nigerian Institute of Medical Research	Microbiology	Rank 1,864
12	83,371	OB Osuntokun, B. O.	University College Hospital, Ibadan	General & Internal Medicine	Rank 897
13	85,467	AA Adewuya, Abiodun O.	Lagos State University	Psychiatry	Rank 1,556
14	88,629	OF Okonofua, Friday	University of Benin	Obstetrics & Reproductive Medicine	Rank 873
15	91,995	UC Uneke, Chigozie Jesse	Ebonyi State University	General & Internal Medicine	Rank 981
16	99,085	OI Okeke, Iruka N.	University of Ibadan	Microbiology	Rank 2,487
17	104,787	AE Ameh, Emmanuel A.	National Hospital, Abuja	Pediatrics	Rank 586
18	112,133	OM Owolabi, Mayowa O.	College of Medicine, University of Ibadan	Neurology & Neurosurgery	Rank 7,171
19	117,654	KB Kang, B. T.	International Institute of Tropical Agriculture (IITA), Ibadan	Agronomy & Agriculture	Rank 604
20	119,789	MJ Mbagwu, J. S.C.	University of Nigeria	Agronomy & Agriculture	Rank 619
21	120,229	OO Onwujekwe, Obinna	University of Nigeria	Health Policy & Services	Rank 329
22	122,165	IM Iwu, Maurice M.	Bioresources Development Group	Medicinal & Biomolecular Chemistry	Rank 454
23	123,798	SA Sowunmi, Akintunde	University of Ibadan	Tropical Medicine	Rank 301
24	139,914	EN Eddy, Nnabuk Okon	University of Nigeria	Energy	Rank 1,671
25	157,410	OF Okieimen, F. E.	University of Benin	Polymers	Rank 1,461
26	160,076	OO Orisakwe, Orish E.	University of Port Harcourt	Toxicology	Rank 767
27	173,154	OM Osilike, M. O.	University of Nigeria	General Mathematics	Rank 1,088
28	174,744	SN Sanginga, N.	International Institute of Tropical Agriculture (IITA), Ibadan	Agronomy & Agriculture	Rank 979
29	176,853	AJ Agbenin, John O.	Federal University, Oye-Ekiti	Agronomy & Agriculture	Rank 993
30	183,486	AP Akah, Peter Achunike	University of Nigeria	Medicinal & Biomolecular Chemistry	Rank 736
31	188,450	OJ Ogbonna, James C.	University of Nigeria	Biotechnology	Rank 600
32	190,334	IU Ishiaku, Umar	Ahmadu Bello University	Polymers	Rank 1,776
33	192,403	ON Oladoja, Nurudeen A.	Adekunle Ajasin University	Chemical Engineering	Rank 961
34	193,562	FO Fagbenro, O. A.	Federal University of Technology, Akure	Fisheries	Rank 611
35	194,957	MA Menkir, Abebe	International Institute of Tropical Agriculture (IITA), Ibadan	Plant Biology & Botany	Rank 2,785
36	196,597	LC Loto, Cleophas	Covenant University	Materials	Rank 2,759
37	197,924	NO Nwafor, O. M.I.	Federal University of Technology, Owerri	Energy	Rank 2,526
38	199,038	AO Adaramoye, Oluwatosin A.	University of Ibadan	Toxicology	Rank 980
39	201,075	AE Adekeye, Emmanuel Oladepo	Etomie Oral and Maxillofacial Specialist Hospital	Dentistry	Rank 1,279
40	207,696	TO Tomori, Oyewale	Redeemer‘s University	Tropical Medicine	Rank 510
41	209,499	SS Strebelle, Sebastien	Chevron Nigeria Limited	Energy	Rank 2,703
42	211,405	UK Ukwaja, Kingsley N.	Alex Ekwueme Federal University Teaching Hospital	General & Internal Medicine	Rank 2,282
43	213,116	AK Alaneme, Kenneth Kanayo	Federal University of Technology, Akure	Materials	Rank 3,038
44	215,708	AV Aletor, Valentine A.	Federal University of Technology, Akure	Food Science	Rank 1,077
45	216,910	SA Sanni, A. I.	University of Ibadan	Food Science	Rank 1,088
46	224,173	AK Adebowale, Kayode O.	University of Ibadan	Food Science	Rank 1,124
47	224,866	OS Oyedepo, Sunday O.	Covenant University	Energy	Rank 2,908
48	225,672	SL Salako, L.	University of Ibadan	Tropical Medicine	Rank 561
49	236,500	AI Animasaun, I. L.	Federal University of Technology, Akure	Mechanical Engineering & Transports	Rank 1,667
50	239,618	AE Adeyeye, E. I.	Ekiti State University	Food Science	Rank 1,205
51	244,027	AA Adeneye, Adejuwon Adewale	Lagos State University	Medicinal & Biomolecular Chemistry	Rank 1,089
52	251,228	IC Iwegbue, Chukwujindu M.A.	Delta State University Nigeria	Environmental Sciences	Rank 1,743
53	254,190	AA Attama, Anthony A.	University of Nigeria	Pharmacology & Pharmacy	Rank 2,690
54	254,775	AO Abiola, Olusegun K.	Federal University of Petroleum Resources, Effurun	Materials	Rank 3,703
55	265,848	JB Jha, Basant K.	Ahmadu Bello University	Mechanical Engineering & Transports	Rank 1,897
56	266,230	HR Horton, Robin	Obafemi Awolowo University	Cultural Studies	Rank 98
57	267,128	EO Ekundayo, O.	University of Ibadan	Medicinal & Biomolecular Chemistry	Rank 1,233
58	299,661	AD Akinyele, Daniel	Bells University of Technology	Energy	Rank 4,113
59	301,329	MM Meremikwu, Martin M.	University of Calabar	General & Internal Medicine	Rank 3,358
60	307,043	AR Anorlu, R. I.	University of Lagos	General & Internal Medicine	Rank 3,428
61	317,261	DM Danesi, Mustafa	University of Lagos	General & Internal Medicine	Rank 3,551
62	317,968	ON Obi-Egbedi, Nelson Okpako	University of Ibadan	Energy	Rank 4,429
63	320,890	AS Adesina, Simeon K.	Obafemi Awolowo University	Medicinal & Biomolecular Chemistry	Rank 1,579
64	321,662	YM Yakubu, Musa Toyin	University of Ilorin	Medicinal & Biomolecular Chemistry	Rank 1,585
65	327,985	LR Loto, Roland T.	Covenant University	Materials	Rank 5,017
66	328,241	MS Misra, Sanjay	Covenant University	Artificial Intelligence & Image Processing	Rank 5,736
67	342,570	Lateef, Agbaje	Ladoke Akintola University of Technology	Biotechnology	Rank 1,250
68	375,406	EG Edington, G. M.	Ahmadu Bello University	General & Internal Medicine	Rank 4,245
69	411,754	AV Aigbodion, Victor Sunday	University of Nigeria	Materials	Rank 6,536
70	463,493	BB Badu-Apraku, Baffour	International Institute of Tropical Agriculture (IITA), Ibadan	Plant Biology & Botany	Rank 7,117
71	472,948	AO Ajayi, O. O.	Covenant University	Materials	Rank 7,729
72	505,403	ST Sulaiman, Tukur A.	Federal University Dutse	Optoelectronics & Photonics	Rank 2,507
73	1,089,436	OJ Okeniyi, Joshua Olusegun	Covenant University	Energy	Rank 19,393
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Showing 1 to 73 of 73 Show

Countries with a similar count

Career-long list2021

Qatar100 scientistsin 2021

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Bulgaria73 scientistsin 2021

Slovakia70 scientistsin 2021

Serbia69 scientistsin 2021

Cyprus64 scientistsin 2021

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Career-long list2021

South Africa669 scientistsin 2021

Egypt327 scientistsin 2021

Kenya35 scientistsin 2021

Tunisia23 scientistsin 2021

Algeria21 scientistsin 2021

Israel1,870 scientistsin 2021

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Frequently asked questions

How many scientists from Nigeria are in the 2021 Stanford Top 2% list?

121 scientists affiliated with Nigeria are on the 2021 single-year list, and 73 are on the career-long list.

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

On the 2021 career-long list, University of Ibadan has the most listed scientists from Nigeria, with 9. It is followed by University of Nigeria with 8.

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 73 in 2021, a change of +73.8%.

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.