Canada's Top 2% Scientists 2021: Career-Long List

Canada has 8,127 scientists on the 2021 career-long Top 2% list, up 12.5% from 7,225 in 2020. That places Canada 4th in the world by number of listed scientists. University of Toronto has the most listed scientists (930), followed by The University of British Columbia (703).

Single Year

7,479

+877 (+13.3%) vs 2020

Career Data

8,127

+902 (+12.5%) vs 2020

World rank by count

No change vs 2020

Institutes

716

+159 (+28.5%) vs 2020

Scientists in Canada on the list, by year

The career-long count has grown 12% since 2020.

Career-long list, change on the previous year

2021+12.5%

2022+4.3%

2023+4.0%

2024+5.1%

2025+3.5%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	6,602		7,225
2021	7,479	+13.3%	8,127	+12.5%
2022	7,737	+3.4%	8,473	+4.3%
2023	7,889	+2.0%	8,815	+4.0%
2024	8,185	+3.8%	9,265	+5.1%
2025	8,303	+1.4%	9,589	+3.5%

Top 10 institutes in Canada

By number of listed scientists

Career-long list2021

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All 8,127 scientists

Career-long list2021

The first 100 are free to browse.

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Rank in Canada	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	16	YS Yusuf, Salim	McMaster University	Cardiovascular System & Hematology	Rank 1
2	19	BA Becke, Axel D.	Dalhousie University	Chemical Physics	Rank 1
3	54	GG Guyatt, Gordon	McMaster University	General & Internal Medicine	Rank 3
4	73	Hinton, Geoffrey	University of Toronto	Artificial Intelligence & Image Processing	Rank 3
5	142	MD Moher, David	Ottawa Hospital Research Institute	General & Internal Medicine	Rank 7
6	228	HR Hancock, Robert E.W.	The University of British Columbia	Microbiology	Rank 2
7	247	AP Austin, Peter C.	Institute for Clinical Evaluative Sciences	Cardiovascular System & Hematology	Rank 11
8	399	DD Drucker, Daniel J.	University of Toronto	Endocrinology & Metabolism	Rank 19
9	415	LC Li, Chao Jun	Université McGill	Organic Chemistry	Rank 9
10	423	MM Meaney, Michael J.	Université McGill	Neurology & Neurosurgery	Rank 42
11	424	DJ Després, Jean Pierre	Université Laval, Faculté de médecine	Endocrinology & Metabolism	Rank 20
12	453	WD Wishart, David S.	University of Alberta	Developmental Biology	Rank 35
13	467	PT Pawson, Tony	University of Toronto	Developmental Biology	Rank 37
14	633	SM Steriade, Mircea	Université Laval, Faculté de médecine	Neurology & Neurosurgery	Rank 64
15	655	DI Dincer, Ibrahim	Ontario Tech University	Energy	Rank 7
16	672	SF Shahidi, Fereidoon	Memorial University of Newfoundland	Food Science	Rank 2
17	692	MR Melzack, Ronald	Université McGill	Neurology & Neurosurgery	Rank 69
18	728	HJ Hirsh, Jack	McMaster University	Cardiovascular System & Hematology	Rank 41
19	732	BR Bader, Richard F.W.	McMaster University	Chemical Physics	Rank 27
20	738	LA Lang, Anthony E.	University Health Network University of Toronto	Neurology & Neurosurgery	Rank 72
21	741	DJ Dahn, Jeff	Dalhousie University	Energy	Rank 8
22	773	CD Cook, Deborah J.	McMaster University	Emergency & Critical Care Medicine	Rank 4
23	779	SN Sonenberg, Nahum	Rosalind and Morris Goodman Cancer Research Centre	Developmental Biology	Rank 63
24	794	BR Boyd, Robert W.	University of Ottawa	Optics	Rank 4
25	809	SE Schiffrin, Ernesto L.	Lady Davis Institute for Medical Research	Cardiovascular System & Hematology	Rank 46
26	849	BZ Bhutta, Zulfiqar A.	Hospital for Sick Children University of Toronto	General & Internal Medicine	Rank 17
27	870	LP Legendre, Pierre	University of Montreal	Ecology	Rank 18
28	885	CP Corkum, P. B.	University of Ottawa	General Physics	Rank 6
29	886	NS Nattel, Stanley	Institut de Cardiologie de Montreal	Cardiovascular System & Hematology	Rank 52
30	910	KR Kerbel, Robert S.	University of Toronto	Oncology & Carcinogenesis	Rank 40
31	917	SD Sackett, David	Kilgore S. Trout Research and Education Centre	General & Internal Medicine	Rank 19
32	923	KM Kramer, Michael S.	McGill Faculty of Medicine and Health Sciences	Obstetrics & Reproductive Medicine	Rank 3
33	927	MD Miller, Danny	HEC Montréal	Business & Management	Rank 7
34	946	GD Gladman, Dafna D.	Toronto Western Hospital University of Toronto	Arthritis & Rheumatology	Rank 7
35	964	NG Norman, Geoff	McMaster University	Medical Informatics	Rank 2
36	978	KG Koren, Gideon	The University of Western Ontario	General & Internal Medicine	Rank 20
37	1,043	WJ Wallace, John L.	University of Calgary	Gastroenterology & Hepatology	Rank 16
38	1,053	ZT Ziegler, T.	University of Calgary	Chemical Physics	Rank 38
39	1,099	OG Ozin, Geoffrey A.	University of Toronto	Nanoscience & Nanotechnology	Rank 29
40	1,115	KL Kay, Lewis E.	University of Toronto	Biophysics	Rank 2
41	1,118	FL Fahrig, Lenore	Carleton University	Ecology	Rank 20
42	1,130	NS Narod, Steven	University of Toronto	Oncology & Carcinogenesis	Rank 49
43	1,151	LG Laporte, Gilbert	HEC Montréal	Operations Research	Rank 2
44	1,167	CS Connolly, Stuart J.	McMaster University	Cardiovascular System & Hematology	Rank 68
45	1,212	SD Schluter, Dolph	The University of British Columbia	Evolutionary Biology	Rank 16
46	1,216	EA Evans, Alan C.	Institut-Hôpital Neurologique de Montréal	Neurology & Neurosurgery	Rank 124
47	1,237	RK Rockwood, Kenneth	Dalhousie University	Geriatrics	Rank 3
48	1,240	PM Pollak, Michael	School of Medicine	Oncology & Carcinogenesis	Rank 56
49	1,253	RJ Rossant, Janet	Hospital for Sick Children University of Toronto	Developmental Biology	Rank 93
50	1,262	HR Haynes, R. Brian	McMaster University	General & Internal Medicine	Rank 25
51	1,264	TI Tannock, I. F.	Ontario Cancer Institute University of Toronto	Oncology & Carcinogenesis	Rank 58
52	1,334	PJ Peck, Jamie	The University of British Columbia	Geography	Rank 1
53	1,355	TE Tulving, Endel	University of Toronto	Experimental Psychology	Rank 18
54	1,402	PD Pauly, Danie	The University of British Columbia	Fisheries	Rank 1
55	1,405	SD Streiner, David L.	McMaster University	Psychiatry	Rank 45
56	1,412	SS Suissa, Samy	Lady Davis Institute for Medical Research	Respiratory System	Rank 9
57	1,421	PM Petrides, Michael	Institut-Hôpital Neurologique de Montréal	Neurology & Neurosurgery	Rank 146
58	1,426	HS Haykin, Simon	McMaster University	Networking & Telecommunications	Rank 8
59	1,441	PT Paus, Tomas	University of Toronto	Neurology & Neurosurgery	Rank 149
60	1,450	AI Affleck, Ian	The University of British Columbia	Applied Physics	Rank 53
61	1,484	YY Yao, Yiyu	University of Regina	Artificial Intelligence & Image Processing	Rank 33
62	1,491	WT Warkentin, Theodore E.	McMaster University, Faculty of Health Sciences	Cardiovascular System & Hematology	Rank 87
63	1,495	TP Tugwell, Peter	L'Hôpital d'Ottawa	General & Internal Medicine	Rank 28
64	1,504	ZR Zatorre, Robert J.	Institut-Hôpital Neurologique de Montréal	Neurology & Neurosurgery	Rank 156
65	1,526	DE DIamandis, Eleftherios P.	Mount Sinai Hospital of University of Toronto	General Clinical Medicine	Rank 1
66	1,561	KP Kubes, Paul	Cumming School of Medicine	Immunology	Rank 60
67	1,579	SD Stephan, Douglas W.	University of Toronto	Organic Chemistry	Rank 48
68	1,611	WJ Weitz, Jeffrey I.	McMaster University	Cardiovascular System & Hematology	Rank 93
69	1,615	SE Sargent, Edward H.	University of Toronto	Nanoscience & Nanotechnology	Rank 38
70	1,616	HP Hebert, Paul D.N.	University of Guelph	Evolutionary Biology	Rank 22
71	1,634	RJ Rehm, Jürgen	University of Toronto	Substance Abuse	Rank 4
72	1,658	RL Rieseberg, Loren H.	The University of British Columbia	Evolutionary Biology	Rank 25
73	1,677	GH Gerstein, Hertzel C.	McMaster University	Endocrinology & Metabolism	Rank 56
74	1,686	JS John, Sajeev	University of Toronto	Applied Physics	Rank 59
75	1,687	GM Gent, Michael	McMaster University	Cardiovascular System & Hematology	Rank 97
76	1,778	SD Schindler, David	University of Alberta	Marine Biology & Hydrobiology	Rank 5
77	1,811	PW Peltier, W. Richard	University of Toronto	Meteorology & Atmospheric Sciences	Rank 11
78	1,816	SE Simons, Estelle F.	University of Manitoba	Allergy	Rank 6
79	1,858	GB Glick, Bernard R.	University of Waterloo	Microbiology	Rank 31
80	1,905	OA Owen, Adrian M.	The University of Western Ontario	Neurology & Neurosurgery	Rank 194
81	1,973	HJ Hanley, James A.	Université McGill	Epidemiology	Rank 9
82	1,982	WD Winter, David	University of Waterloo	Biomedical Engineering	Rank 9
83	1,989	CR Cooper, Robert G.	DeGroote School of Business	Business & Management	Rank 13
84	2,011	LF Labrie, Fernand	EndoCeutics Inc.	Endocrinology & Metabolism	Rank 71
85	2,071	BE Bialystok, Ellen	York University	Experimental Psychology	Rank 30
86	2,087	BF Berkes, Fikret	University of Manitoba	Ecology	Rank 37
87	2,110	Eysenbach, Gunther	University of Toronto	Medical Informatics	Rank 3
88	2,135	PJ Pawliszyn, Janusz	University of Waterloo	Analytical Chemistry	Rank 8
89	2,157	EE Evans, Evan A.	The University of British Columbia	Biophysics	Rank 4
90	2,193	HK Hobson, Keith A.	The University of Western Ontario	Ecology	Rank 41
91	2,195	JI Janssen, Ian	Queen’s University	Public Health	Rank 16
92	2,202	BC Bombardier, Claire	University Health Network University of Toronto	Arthritis & Rheumatology	Rank 15
93	2,242	SP Seeman, Philip	University of Toronto	Neurology & Neurosurgery	Rank 218
94	2,295	WS Walter, Stephen D.	McMaster University	Epidemiology	Rank 13
95	2,363	BJ Berry, John W.	Queen’s University	Social Psychology	Rank 37
96	2,404	SF Shepherd, Frances A.	University of Toronto	Oncology & Carcinogenesis	Rank 111
97	2,425	HJ Hogg, James	The University of British Columbia	Respiratory System	Rank 20
98	2,431	SR Shephard, Roy J.	University of Toronto	Sport Sciences	Rank 3
99	2,434	AP Abrams, Peter A.	University of Toronto	Ecology	Rank 46
100	2,452	MJ Marshall, John C.	Saint Michael's Hospital University of Toronto	Emergency & Critical Care Medicine	Rank 9
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Countries with a similar count

Career-long list2021

United States75,908 scientistsin 2021

United Kingdom17,237 scientistsin 2021

Germany9,986 scientistsin 2021

Japan7,362 scientistsin 2021

China6,943 scientistsin 2021

Australia6,369 scientistsin 2021

Explore other countries

Career-long list2021

Brazil812 scientistsin 2021

Mexico342 scientistsin 2021

Argentina204 scientistsin 2021

Chile156 scientistsin 2021

Colombia42 scientistsin 2021

Venezuela24 scientistsin 2021

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Frequently asked questions

How many scientists from Canada are in the 2021 Stanford Top 2% list?

7,479 scientists affiliated with Canada are on the 2021 single-year list, and 8,127 are on the career-long list.

Which institute in Canada has the most Top 2% scientists?

On the 2021 career-long list, University of Toronto has the most listed scientists from Canada, with 930. It is followed by The University of British Columbia with 703.

How has the number of Top 2% scientists in Canada changed since 2020?

On the career-long list, Canada went from 7,225 scientists in 2020 to 8,127 in 2021, a change of +12.5%.

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.