The University of Ibadan has retained the No. 1 position among Nigerian universities in the latest AD Scientific Index, with federal institutions dominating the country’s leading positions.
The ranking, which evaluates universities based largely on the research impact of their academics, places the University of Ibadan first nationally, followed by the University of Nigeria, Nsukka.
AD Scientific Index currently lists UI at 891st globally and 14th in Africa, with 1,586 indexed researchers and staff. Its database covers universities and researchers across 221 countries.
The ranking measures academic research performance using indicators including the H-index, i10-index and citation counts.
The University of Ibadan’s position reflects the research impact of its academics, with several of its scholars also featuring prominently among Nigeria’s most-cited researchers.
Among the academics highlighted in the report is Mayowa Owolabi of the University of Ibadan, who ranks among Nigeria’s leading researchers by citation count.
Other universities featuring prominently in the Nigerian rankings include the University of Nigeria, Nsukka, University of Lagos, Obafemi Awolowo University, University of Ilorin, Ahmadu Bello University, Nnamdi Azikiwe University and Bayero University.
The findings also point to the significant role of federal universities in Nigeria’s research landscape, although the ranking is specifically based on research-related indicators and should not be interpreted as a comprehensive assessment of teaching quality, facilities, student experience or employability.
Nigeria’s research footprint expands
The latest figures indicate that Nigeria has a substantial presence in the AD Scientific Index, with hundreds of institutions and tens of thousands of researchers represented in the database.
The index describes its university rankings as near-real-time academic analytics, meaning positions can change as researchers’ profiles and citation records are updated.
The ranking therefore provides a snapshot of research visibility rather than a permanent assessment of institutional performance.
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The report associated with the latest Nigerian ranking also called for universities to improve research quality, strengthen doctoral training, support productive research groups and expand international collaboration.
It further encouraged Nigerian academics and institutions to maintain accurate and regularly updated Google Scholar profiles, which can affect the visibility of their research records in citation-based rankings.
THE ranking offers a different picture
The AD Scientific Index results come shortly after the release of the 2027 Times Higher Education World University Rankings, which uses a broader set of indicators covering teaching, research environment, research quality, industry engagement and international outlook.
In the latest THE ranking, Covenant University, the University of Ibadan and the University of Lagos were jointly placed in the 801–1,000 global band, making them Nigeria’s highest-ranked institutions in that particular ranking. Nigeria had 29 universities in the 2027 edition, compared with 24 in 2026.
The difference between the two rankings reflects their different methodologies. AD Scientific Index places strong emphasis on individual researchers’ citation and research metrics, while THE assesses institutions across multiple areas of university performance.
The latest findings nevertheless highlight the growing visibility of Nigerian universities in international research and higher-education rankings, while also pointing to the need for stronger research output, citation impact and international collaboration across the sector.