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" (873,927 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
George Aggelis
Industrial Biotechnology
Microbial Biotechnology
Metrics
H-Index
i10 Index
Citation
73
138
16,805
* Rankings
Ranking Based On Selection :2
Panayotis Dimopoulos
Vegetation
Ecology
Plant species diversity
Habitats/Vegetation Mapping & Monitoring
Metrics
H-Index
i10 Index
Citation
47
123
9,405
Eva Papastergiadou
Freshwater Ecology
Biodiversity
Landcover /use changes
Water quality
Ecological Indicators
Metrics
H-Index
i10 Index
Citation
31
62
3,757
Irene Margiolaki
Biochemistry
Crystallography
X-ray diffraction
Structural biology
Metrics
H-Index
i10 Index
Citation
31
74
11,620
Alexandra Lianou
Applied Microbiology
Food Microbiology
Biotechnology
Predictive modelling
Metrics
H-Index
i10 Index
Citation
27
47
2,684
Sinos Giokas
Evolutionary Ecology
Biodiversity
Phylogeny
Animal Behavior
Biogeography
Metrics
H-Index
i10 Index
Citation
26
48
1,697
Christos T. Chasapis
Bioinformatics
Structural Systems Biology
Metrics
H-Index
i10 Index
Citation
24
41
3,615
Yiola Petropoulou
Plant physiology and ecophysiology with emphasis on Photosynthesis of Mediterranean plants
Metrics
H-Index
i10 Index
Citation
22
28
1,833
* Rankings
Ranking Based On Selection :10
Thanassis Karalis
Lifelong Learning
Adult Education
University Pedagogy
Metrics
H-Index
i10 Index
Citation
20
32
1,613
* Rankings
Ranking Based On Selection :11
Adamantia Papachatzopoulou
Haemoglobinopathies
regulation of transcription of human beta globin gene cluster
Metrics
H-Index
i10 Index
Citation
18
24
1,005
* Rankings
Ranking Based On Selection :13
Georgia Kamari
Botany
Cytology
Karyosystematic
Phytogeography
Red Data Book
Metrics
H-Index
i10 Index
Citation
17
35
1,034
* Rankings
Ranking Based On Selection :16
George P Mitsainas
Βιολογία
Ζωολογία
Πανίδα
Κυτταρολογία
Metrics
H-Index
i10 Index
Citation
13
15
531
Eleni Iliadou
Ecology
Botany
Biodiversity Conservation
Ecosystem services
GIS
Metrics
H-Index
i10 Index
Citation
7
6
123
Koutsidi Martha
biological traits
functional ecology
fisheries
Metrics
H-Index
i10 Index
Citation
6
5
113
Sofia Spanou
Ecology
Conservation
Botany
Monitoring
GIS
Metrics
H-Index
i10 Index
Citation
4
2
95
Rankings
Ranking Based On Selection: 1
George Aggelis
Metrics
H-Index
i10 Index
Citation Counts
73
138
16,805
Industrial Biotechnology
Microbial Biotechnology
Rankings
Ranking Based On Selection: 2
Panayotis Dimopoulos
Metrics
H-Index
i10 Index
Citation Counts
47
123
9,405
Vegetation
Ecology
Plant species diversity
Habitats/Vegetation Mapping & Monitoring
Rankings
Ranking Based On Selection: 3
Eva Papastergiadou
Metrics
H-Index
i10 Index
Citation Counts
31
62
3,757
Freshwater Ecology
Biodiversity
Landcover /use changes
Water quality
Ecological Indicators
Rankings
Ranking Based On Selection: 4
Irene Margiolaki
Metrics
H-Index
i10 Index
Citation Counts
31
74
11,620
Biochemistry
Crystallography
X-ray diffraction
Structural biology
Rankings
Ranking Based On Selection: 5
Alexandra Lianou
Metrics
H-Index
i10 Index
Citation Counts
27
47
2,684
Applied Microbiology
Food Microbiology
Biotechnology
Predictive modelling
Rankings
Ranking Based On Selection: 6
Sinos Giokas
Metrics
H-Index
i10 Index
Citation Counts
26
48
1,697
Evolutionary Ecology
Biodiversity
Phylogeny
Animal Behavior
Biogeography
Rankings
Ranking Based On Selection: 7
Maria Panitsa
Metrics
H-Index
i10 Index
Citation Counts
25
44
1,858
Rankings
Ranking Based On Selection: 8
Christos T. Chasapis
Metrics
H-Index
i10 Index
Citation Counts
24
41
3,615
Rankings
Ranking Based On Selection: 9
Yiola Petropoulou
Metrics
H-Index
i10 Index
Citation Counts
22
28
1,833
Plant physiology and ecophysiology with emphasis on Photosynthesis of Mediterranean plants
Rankings
Ranking Based On Selection: 10
Thanassis Karalis
Metrics
H-Index
i10 Index
Citation Counts
20
32
1,613
Lifelong Learning
Adult Education
University Pedagogy
Rankings
Ranking Based On Selection: 11
Adamantia Papachatzopoulou
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,005
Haemoglobinopathies
regulation of transcription of human beta globin gene cluster
Rankings
Ranking Based On Selection: 12
Stamatia Bellou
Metrics
H-Index
i10 Index
Citation Counts
17
20
2,353
Rankings
Ranking Based On Selection: 13
Georgia Kamari
Metrics
H-Index
i10 Index
Citation Counts
17
35
1,034
Botany
Cytology
Karyosystematic
Phytogeography
Red Data Book
Rankings
Ranking Based On Selection: 14
George Hotos|Γεώργιος Χώτος, Georgios Hotos
Metrics
H-Index
i10 Index
Citation Counts
16
22
706
Biology
Plankton
Aquaculture
microscopy
Ichthyology
Rankings
Ranking Based On Selection: 15
Vasiliki Tsarpali
Metrics
H-Index
i10 Index
Citation Counts
13
16
1,112
Rankings
Ranking Based On Selection: 16
George P Mitsainas
Metrics
H-Index
i10 Index
Citation Counts
13
15
531
Βιολογία
Ζωολογία
Πανίδα
Κυτταρολογία
Rankings
Ranking Based On Selection: 17
Marida Ergazaki
Metrics
H-Index
i10 Index
Citation Counts
12
13
548
Rankings
Ranking Based On Selection: 19
Electra Kalaitzopoulou
Metrics
H-Index
i10 Index
Citation Counts
8
5
169
Rankings
Ranking Based On Selection: 20
Eleni Iliadou
Metrics
H-Index
i10 Index
Citation Counts
7
6
123
Ecology
Botany
Biodiversity Conservation
Ecosystem services
GIS
Rankings
Ranking Based On Selection: 21
Koutsidi Martha
Metrics
H-Index
i10 Index
Citation Counts
6
5
113
biological traits
functional ecology
fisheries
Rankings
Ranking Based On Selection: 22
Sofia Spanou
Metrics
H-Index
i10 Index
Citation Counts
4
2
95
Rankings
Ranking Based On Selection: 23
Maria Tsakiri
Metrics
H-Index
i10 Index
Citation Counts
4
1
30