Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Rankings
Rankings

11,675
World Rank

5,509
Country Rank

374
University
Ranking Based On Selection:
1
Law / Constitutional Law
Constitutional Law | Constitutional Theory | Corruption | Copyright | Interne
Constitutional Law | Constitutional Theory | Corruption | Copyright | Interne
Citation Metrics
-
Total47,660
-
Last 6 Years9,435
-
Last 6 Years / Total0.198
* Total Citation Rankings
Rankings

20,789
World Rank

9,565
Country Rank

48
University
Ranking Based On Selection:
2
Law / Constitutional Law
constitutional law | philosophy of law | legal reasoning | freedom of speech and press | law of evidence and proo
constitutional law | philosophy of law | legal reasoning | freedom of speech and press | law of evidence and proo
Citation Metrics
-
Total33,137
-
Last 6 Years7,732
-
Last 6 Years / Total0.233
* Total Citation Rankings
Rankings

36,413
World Rank

16,222
Country Rank

248
University
Ranking Based On Selection:
3
Citation Metrics
-
Total22,759
-
Last 6 Years3,418
-
Last 6 Years / Total0.150
* Total Citation Rankings
Rankings

38,015
World Rank

16,878
Country Rank

391
University
Ranking Based On Selection:
4
Citation Metrics
-
Total22,086
-
Last 6 Years3,123
-
Last 6 Years / Total0.141
* Total Citation Rankings
Rankings

40,833
World Rank

17,974
Country Rank

175
University
Ranking Based On Selection:
5
Citation Metrics
-
Total21,014
-
Last 6 Years9,351
-
Last 6 Years / Total0.445
* Total Citation Rankings
Rankings

45,759
World Rank

19,859
Country Rank

78
University
Ranking Based On Selection:
6
Law / Constitutional Law
American politics | public law | law | constitutional law | judicial politic
American politics | public law | law | constitutional law | judicial politic
Citation Metrics
-
Total19,321
-
Last 6 Years3,187
-
Last 6 Years / Total0.165
* Total Citation Rankings
Rankings

47,291
World Rank

20,467
Country Rank

2
University
Ranking Based On Selection:
7
Law / Constitutional Law
Comparative Constitutional Law | Constitutional Theory | Philosophy of Law | Theory of La
Comparative Constitutional Law | Constitutional Theory | Philosophy of Law | Theory of La
Citation Metrics
-
Total18,868
-
Last 6 Years6,184
-
Last 6 Years / Total0.328
* Total Citation Rankings
Rankings

78,996
World Rank

32,287
Country Rank

606
University
Ranking Based On Selection:
8
Citation Metrics
-
Total12,742
-
Last 6 Years3,615
-
Last 6 Years / Total0.284
* Total Citation Rankings
Rankings

91,695
World Rank

36,867
Country Rank

665
University
Ranking Based On Selection:
9
Law / Constitutional Law
law | constitutional law | international law | terrorism | separation of power
law | constitutional law | international law | terrorism | separation of power
Citation Metrics
-
Total11,276
-
Last 6 Years1,684
-
Last 6 Years / Total0.149
* Total Citation Rankings
Rankings

92,826
World Rank

37,245
Country Rank

568
University
Ranking Based On Selection:
10
Law / Constitutional Law
Constitutional law | civil rights and civil liberties | modern political though
Constitutional law | civil rights and civil liberties | modern political though
Citation Metrics
-
Total11,150
-
Last 6 Years2,454
-
Last 6 Years / Total0.220
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Rankings
Rankings

103,041
World Rank

40,753
Country Rank

554
University
Ranking Based On Selection:
11
Law / Constitutional Law
international law | foreign relations law | national security law | constitutional la
international law | foreign relations law | national security law | constitutional la
Citation Metrics
-
Total10,199
-
Last 6 Years3,196
-
Last 6 Years / Total0.313
* Total Citation Rankings
Rankings

103,673
World Rank

40,966
Country Rank

349
University
Ranking Based On Selection:
12
Citation Metrics
-
Total10,144
-
Last 6 Years6,308
-
Last 6 Years / Total0.622
* Total Citation Rankings
Rankings

117,756
World Rank

45,777
Country Rank

770
University
Ranking Based On Selection:
13
Law / Constitutional Law
Administrative Law | Constitutional Law | Rulemaking | President | Statutory Interpretatio
Administrative Law | Constitutional Law | Rulemaking | President | Statutory Interpretatio
Citation Metrics
-
Total9,066
-
Last 6 Years1,296
-
Last 6 Years / Total0.143
* Total Citation Rankings
Rankings

121,123
World Rank

46,862
Country Rank

104
University
Ranking Based On Selection:
14
Citation Metrics
-
Total8,840
-
Last 6 Years1,470
-
Last 6 Years / Total0.166
* Total Citation Rankings
Rankings

122,606
World Rank

47,349
Country Rank

336
University
Ranking Based On Selection:
15
Law / Constitutional Law
Legal history | Constitutional law | Torts | Judicial biography | Constitutional histor
Legal history | Constitutional law | Torts | Judicial biography | Constitutional histor
Citation Metrics
-
Total8,741
-
Last 6 Years995
-
Last 6 Years / Total0.114
* Total Citation Rankings
Rankings

138,599
World Rank

52,582
Country Rank

450
University
Ranking Based On Selection:
16
Citation Metrics
-
Total7,827
-
Last 6 Years3,337
-
Last 6 Years / Total0.426
* Total Citation Rankings
Rankings

153,200
World Rank

57,245
Country Rank

398
University
Ranking Based On Selection:
17
Citation Metrics
-
Total7,124
-
Last 6 Years1,879
-
Last 6 Years / Total0.264
* Total Citation Rankings
Rankings

160,893
World Rank

59,659
Country Rank

39
University
Ranking Based On Selection:
18
Citation Metrics
-
Total6,796
-
Last 6 Years1,535
-
Last 6 Years / Total0.226
* Total Citation Rankings
Rankings

160,895
World Rank

59,660
Country Rank

7
University
Ranking Based On Selection:
19
Citation Metrics
-
Total6,796
-
Last 6 Years1,108
-
Last 6 Years / Total0.163
* Total Citation Rankings
Rankings

175,251
World Rank

64,122
Country Rank

418
University
Ranking Based On Selection:
20
Law / Constitutional Law
legal history | war powers | constitutional law | civil rights | U.S. and the worl
legal history | war powers | constitutional law | civil rights | U.S. and the worl
Citation Metrics
-
Total6,254
-
Last 6 Years1,339
-
Last 6 Years / Total0.214
* Total Citation Rankings
Rankings

188,423
World Rank

68,243
Country Rank

208
University
Ranking Based On Selection:
21
Citation Metrics
-
Total5,817
-
Last 6 Years1,136
-
Last 6 Years / Total0.195
* Total Citation Rankings
Rankings

193,020
World Rank

69,644
Country Rank

490
University
Ranking Based On Selection:
22
Citation Metrics
-
Total5,674
-
Last 6 Years1,914
-
Last 6 Years / Total0.337
* Total Citation Rankings
Rankings

198,990
World Rank

71,431
Country Rank

502
University
Ranking Based On Selection:
23
Citation Metrics
-
Total5,502
-
Last 6 Years3,500
-
Last 6 Years / Total0.636
* Total Citation Rankings
Rankings

213,869
World Rank

75,816
Country Rank

1
University
Ranking Based On Selection:
24
Law / Constitutional Law
Constitutional Law | State Constitutional Law | Privacy Law | National Security La
Constitutional Law | State Constitutional Law | Privacy Law | National Security La
Citation Metrics
-
Total5,107
-
Last 6 Years1,909
-
Last 6 Years / Total0.374
* Total Citation Rankings
Rankings

214,075
World Rank

75,876
Country Rank

518
University
Ranking Based On Selection:
25
Law / Constitutional Law
comparative constitutional law | international law | empirical legal studie
comparative constitutional law | international law | empirical legal studie
Citation Metrics
-
Total5,102
-
Last 6 Years2,845
-
Last 6 Years / Total0.558