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
Diofantos G Hadjimitsis
remote sensing
geomatics/GIS
UAV
environmental sciences
sustainable construction
Metrics
H-Index
i10 Index
Citation
47
162
7,797
* Rankings
Ranking Based On Selection: 3
Paul Christodoulides
Renewable energy systems
geothermal energy
water waves
free surface flows
statistical modeling
Metrics
H-Index
i10 Index
Citation
36
76
5,393
* Rankings
Ranking Based On Selection: 4
Irene Michael Kordatou
wastewater treatment and reuse
advanced oxidation processes
contaminants of emerging concern
Metrics
H-Index
i10 Index
Citation
27
31
9,507
* Rankings
Ranking Based On Selection: 5
Marina Neophytou Cantab
multi-scale urban fluid dynamics
air pollution
urban heat island
urban climate and climate change
sustainable built envir
Metrics
H-Index
i10 Index
Citation
27
40
3,436
* Rankings
Ranking Based On Selection: 6
Marlen I Vasquez
environmental toxicology
molecular bioassessment
bioanalytical tools
environmental engineering
ecological health
Metrics
H-Index
i10 Index
Citation
26
37
3,813
* Rankings
Ranking Based On Selection: 9
Lida Ioannou Ttofa
wastewater treatment and reuse
advanced oxidation processes
advanced biological treatment
Life Cycle Assessment
Metrics
H-Index
i10 Index
Citation
14
15
2,190
* Rankings
Ranking Based On Selection: 10
Petros Mouzourides
Air Quality Modelling & Monitoring
Multiresolution Analysis
Fluid Mechanics
Metrics
H-Index
i10 Index
Citation
9
9
662

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* Rankings
Ranking Based On Selection: 11
Andrea Naziri
Environmental Science
Plastic Pollution
Wastewater Treatment
Metrics
H-Index
i10 Index
Citation
3
3
49
Rankings
Ranking Based On Selection: 1
Diofantos G Hadjimitsis
Metrics
H-Index
i10 Index
Citation Counts
47
162
7,797
remote sensing
geomatics/GIS
UAV
environmental sciences
sustainable construction
Rankings
Ranking Based On Selection: 2
Georgios Defteaios
Metrics
H-Index
i10 Index
Citation Counts
40
40
56,515
Rankings
Ranking Based On Selection: 3
Paul Christodoulides
Metrics
H-Index
i10 Index
Citation Counts
36
76
5,393
Renewable energy systems
geothermal energy
water waves
free surface flows
statistical modeling
Rankings
Ranking Based On Selection: 4
Irene Michael Kordatou
Metrics
H-Index
i10 Index
Citation Counts
27
31
9,507
wastewater treatment and reuse
advanced oxidation processes
contaminants of emerging concern
Rankings
Ranking Based On Selection: 5
Marina Neophytou Cantab
Metrics
H-Index
i10 Index
Citation Counts
27
40
3,436
multi-scale urban fluid dynamics
air pollution
urban heat island
urban climate and climate change
sustainable built envir
Rankings
Ranking Based On Selection: 6
Marlen I Vasquez
Metrics
H-Index
i10 Index
Citation Counts
26
37
3,813
environmental toxicology
molecular bioassessment
bioanalytical tools
environmental engineering
ecological health
Rankings
Ranking Based On Selection: 7
Michalis Koutinas
Metrics
H-Index
i10 Index
Citation Counts
23
37
1,569
Rankings
Ranking Based On Selection: 8
George Miliaresis
Metrics
H-Index
i10 Index
Citation Counts
17
33
1,451
Rankings
Ranking Based On Selection: 9
Lida Ioannou Ttofa
Metrics
H-Index
i10 Index
Citation Counts
14
15
2,190
wastewater treatment and reuse
advanced oxidation processes
advanced biological treatment
Life Cycle Assessment
Rankings
Ranking Based On Selection: 10
Petros Mouzourides
Metrics
H-Index
i10 Index
Citation Counts
9
9
662
Air Quality Modelling & Monitoring
Multiresolution Analysis
Fluid Mechanics

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
Andrea Naziri
Metrics
H-Index
i10 Index
Citation Counts
3
3
49
Environmental Science
Plastic Pollution
Wastewater Treatment
Rankings
Ranking Based On Selection: 12
Anthos Ioannou
Metrics
H-Index
i10 Index
Citation Counts
2
0
5