Sierra Leone's Top 2% Scientists 2025
Sierra Leone has 3 scientists on the 2025 single-year Top 2% list, up 50.0% from 2 in 2024. That places Sierra Leone 131st in the world by number of listed scientists, up 3 places. Eastern Technical University of Sierra Leone has the most listed scientists (1), followed by International Society for Infectious Diseases (1).
Scientists in Sierra Leone on the list, by year
The single-year count has more than tripled since 2020.
Show the numbers
| Year | Single Year | Change | Career Data | Change |
|---|---|---|---|---|
| 2020 | 1 | - | ||
| 2021 | 1 | +0.0% | - | |
| 2022 | 1 | +0.0% | 1 | |
| 2023 | 2 | +100.0% | 1 | +0.0% |
| 2024 | 2 | +0.0% | 1 | +0.0% |
| 2025 | 3 | +50.0% | 1 | +0.0% |
Institutes in Sierra Leone
By number of listed scientists
All 3 scientists
| Rank in Sierra Leone | World rank | Scientist | Institute | Sub-field | Rank in sub-field |
|---|---|---|---|---|---|
| 1 | 173,519 | International Society for Infectious Diseases | Tropical Medicine | Rank 212 | |
| 2 | 360,539 | Eastern Technical University of Sierra Leone | Cultural Studies | Rank 169 | |
| 3 | 603,459 | University of Sierra Leone | General & Internal Medicine | Rank 6,576 | |
| No scientists match this filter. | |||||
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Frequently asked questions
How many scientists from Sierra Leone are in the 2025 Stanford Top 2% list?
3 scientists affiliated with Sierra Leone are on the 2025 single-year list, and 1 are on the career-long list.
Which institute in Sierra Leone has the most Top 2% scientists?
On the 2025 single-year list, Eastern Technical University of Sierra Leone has the most listed scientists from Sierra Leone, with 1. It is followed by International Society for Infectious Diseases with 1.
How has the number of Top 2% scientists in Sierra Leone changed since 2020?
On the single-year list, Sierra Leone went from 1 scientists in 2020 to 3 in 2025, a change of +200.0%.
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.