Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Habib Ayadi
Ecologie aquatique
Microalgue
Biomolécule
Metrics
H-Index
i10 Index
Citation
38
101
4,075
* Rankings
Ranking Based On Selection: 2
Nabil Miled
Molecular cellular and structural biology
Metrics
H-Index
i10 Index
Citation
32
61
3,427
* Rankings
Ranking Based On Selection: 3
Mohamed Nejib Daly Yahia
Plankton Ecology
Plankton Taxonomy
Biodiversity
Ecotoxicology
Zooplankton
Metrics
H-Index
i10 Index
Citation
25
52
2,215
* Rankings
Ranking Based On Selection: 5
Khaled Hani
Microbiologie
biochimie
pharmacologie
Metrics
H-Index
i10 Index
Citation
24
36
1,940
* Rankings
Ranking Based On Selection: 8
Lassad Neifar
biologie marine
biodiversité
parasitologie
Metrics
H-Index
i10 Index
Citation
22
61
1,547
* Rankings
Ranking Based On Selection: 9
Sonia Sahli
Scientific research in sport
physical activity
functional performance
postural balance and health
Metrics
H-Index
i10 Index
Citation
20
33
1,313
* Rankings
Ranking Based On Selection: 10
Sami Maalej
Microbial ecology
Microbial biodiversity
Marine and hypersaline environments
Halophilic microbial genome
Biotechnology
Metrics
H-Index
i10 Index
Citation
20
31
1,212

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* Rankings
Ranking Based On Selection: 12
Guetat A
Biological Sciences
Biodiversity
Metrics
H-Index
i10 Index
Citation
16
25
789
* Rankings
Ranking Based On Selection: 14
Wassim Guermazi
Ecologie aquatique-algoculture-Biomolécule
Metrics
H-Index
i10 Index
Citation
14
17
513
* Rankings
Ranking Based On Selection: 15
Chantal Ebel
Biologie moléculaire des plantes
Metrics
H-Index
i10 Index
Citation
13
17
2,158
* Rankings
Ranking Based On Selection: 16
Imen Oueslati
Olive Oil
Lipids
Biochemistrie
Biotechnology
Metrics
H-Index
i10 Index
Citation
12
15
774
* Rankings
Ranking Based On Selection: 18
Neyssene Aissaoui
Biochimie structurale
Biologie moléculaire
Génie enzymatique
Metrics
H-Index
i10 Index
Citation
10
10
308
* Rankings
Ranking Based On Selection: 25
Héla Gargouri
spéciation et authenticité génomique dans l'industrie agroalimentaire
Metrics
H-Index
i10 Index
Citation
4
3
55
* Rankings
Ranking Based On Selection: 26
Wissem Abbes
Cloud Computing
Evolutionary techniques
Optimization problem
Metrics
H-Index
i10 Index
Citation
3
1
36
Rankings
Ranking Based On Selection: 1
Habib Ayadi
Metrics
H-Index
i10 Index
Citation Counts
38
101
4,075
Rankings
Ranking Based On Selection: 2
Nabil Miled
Metrics
H-Index
i10 Index
Citation Counts
32
61
3,427
Rankings
Ranking Based On Selection: 3
Mohamed Nejib Daly Yahia
Metrics
H-Index
i10 Index
Citation Counts
25
52
2,215
Plankton Ecology
Plankton Taxonomy
Biodiversity
Ecotoxicology
Zooplankton
Rankings
Ranking Based On Selection: 4
Ahmed Masmoudi
Metrics
H-Index
i10 Index
Citation Counts
24
39
1,597
Rankings
Ranking Based On Selection: 5
Khaled Hani
Metrics
H-Index
i10 Index
Citation Counts
24
36
1,940
Rankings
Ranking Based On Selection: 6
Karim Chahed
Metrics
H-Index
i10 Index
Citation Counts
23
31
1,476
Rankings
Ranking Based On Selection: 7
Slaheddine Selmi
Metrics
H-Index
i10 Index
Citation Counts
22
46
1,611
Rankings
Ranking Based On Selection: 8
Lassad Neifar
Metrics
H-Index
i10 Index
Citation Counts
22
61
1,547
Rankings
Ranking Based On Selection: 9
Sonia Sahli
Metrics
H-Index
i10 Index
Citation Counts
20
33
1,313
Scientific research in sport
physical activity
functional performance
postural balance and health
Rankings
Ranking Based On Selection: 10
Sami Maalej
Metrics
H-Index
i10 Index
Citation Counts
20
31
1,212
Microbial ecology
Microbial biodiversity
Marine and hypersaline environments
Halophilic microbial genome
Biotechnology

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Amine Elleuch
Metrics
H-Index
i10 Index
Citation Counts
17
23
843
Rankings
Ranking Based On Selection: 12
Guetat A
Metrics
H-Index
i10 Index
Citation Counts
16
25
789
Rankings
Ranking Based On Selection: 13
Jannet Elloumi
Metrics
H-Index
i10 Index
Citation Counts
15
21
862
Rankings
Ranking Based On Selection: 14
Wassim Guermazi
Metrics
H-Index
i10 Index
Citation Counts
14
17
513
Rankings
Ranking Based On Selection: 15
Chantal Ebel
Metrics
H-Index
i10 Index
Citation Counts
13
17
2,158
Rankings
Ranking Based On Selection: 16
Imen Oueslati
Metrics
H-Index
i10 Index
Citation Counts
12
15
774
Olive Oil
Lipids
Biochemistrie
Biotechnology
Rankings
Ranking Based On Selection: 17
Hichem Kacem
Metrics
H-Index
i10 Index
Citation Counts
10
12
249
Rankings
Ranking Based On Selection: 18
Neyssene Aissaoui
Metrics
H-Index
i10 Index
Citation Counts
10
10
308
Biochimie structurale
Biologie moléculaire
Génie enzymatique
Rankings
Ranking Based On Selection: 19
Karama Zouari Bouassia
Metrics
H-Index
i10 Index
Citation Counts
9
9
372
Rankings
Ranking Based On Selection: 20
Tahar Gharred
Metrics
H-Index
i10 Index
Citation Counts
8
7
216
Rankings
Ranking Based On Selection: 21
Ensibi Cherif
Metrics
H-Index
i10 Index
Citation Counts
8
7
256
Rankings
Ranking Based On Selection: 22
Neila Trabelsi
Metrics
H-Index
i10 Index
Citation Counts
8
7
229
Rankings
Ranking Based On Selection: 23
Amir Khcharem
Metrics
H-Index
i10 Index
Citation Counts
6
5
98
Rankings
Ranking Based On Selection: 24
Gargouri Wafa
Metrics
H-Index
i10 Index
Citation Counts
4
4
147
Rankings
Ranking Based On Selection: 25
Héla Gargouri
Metrics
H-Index
i10 Index
Citation Counts
4
3
55
spéciation et authenticité génomique dans l'industrie agroalimentaire
Rankings
Ranking Based On Selection: 26
Wissem Abbes
Metrics
H-Index
i10 Index
Citation Counts
3
1
36
Cloud Computing
Evolutionary techniques
Optimization problem
Rankings
Ranking Based On Selection: 27
Mariem Ennouri
Metrics
H-Index
i10 Index
Citation Counts
3
1
34
Rankings
Ranking Based On Selection: 28
Imen Belguith
Metrics
H-Index
i10 Index
Citation Counts
3
1
31
Rankings
Ranking Based On Selection: 29
Mouna Belkessam
Metrics
H-Index
i10 Index
Citation Counts
1
1
13