Lebanon's Top 2% Scientists 2022: Career-Long List

Lebanon has 62 scientists on the 2022 career-long Top 2% list, up 5.1% from 59 in 2021. That places Lebanon 57th in the world by number of listed scientists. American University of Beirut has the most listed scientists (34), followed by American University of Beirut Medical Center (8).

Single Year

+4 (+6.0%) vs 2021

Career Data

+3 (+5.1%) vs 2021

World rank by count

#57

No change vs 2021

Institutes

+1 (+5.9%) vs 2021

Scientists in Lebanon on the list, by year

The career-long count has grown 29% since 2020.

Career-long list, change on the previous year

2021+22.9%

2022+5.1%

2023+0.0%

2024+25.8%

2025+17.9%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	56		48
2021	67	+19.6%	59	+22.9%
2022	71	+6.0%	62	+5.1%
2023	72	+1.4%	62	+0.0%
2024	105	+45.8%	78	+25.8%
2025	98	-6.7%	92	+17.9%

Top 10 institutes in Lebanon

By number of listed scientists

Career-long list2022

Show the list

All 62 scientists

Career-long list2022

Everyone on the list, free to browse.

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Rank in Lebanon	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	10,453	ZF Ziyadeh, Fuad	American University of Beirut	Urology & Nephrology	Rank 99
2	17,564	CA Chamseddine, Ali H.	American University of Beirut	Nuclear & Particle Physics	Rank 252
3	21,064	JR Jabr, Rabih A.	American University of Beirut	Energy	Rank 192
4	26,334	HJ Haddad, John J.	Beirut Arab University	Biochemistry & Molecular Biology	Rank 1,253
5	29,995	OC Obermeyer, Carla Makhlouf	American University of Beirut	Public Health	Rank 271
6	42,366	BA Baraka, Anis	American University of Beirut	Anesthesiology	Rank 148
7	45,599	EF El-Hajj Fuleihan, Ghada	American University of Beirut Medical Center	Endocrinology & Metabolism	Rank 1,063
8	54,508	MA Mansour, Ahmad M.	American University of Beirut	Ophthalmology & Optometry	Rank 347
9	59,724	KS Khoury, Samia	American University of Beirut Medical Center	Neurology & Neurosurgery	Rank 4,174
10	61,666	AE Akl, Elie A.	American University of Beirut	General & Internal Medicine	Rank 806
11	62,974	TA Taher, Ali	American University of Beirut Medical Center	Immunology	Rank 1,889
12	66,446	BA Beydoun, Ahmad	American University of Beirut Medical Center	Neurology & Neurosurgery	Rank 4,597
13	69,125	HM Harajli, Mohamed	American University of Beirut	Civil Engineering	Rank 102
14	69,417	KJ Khatib, Jamal	Beirut Arab University, Faculty of Engineering	Building & Construction	Rank 127
15	69,435	DA Dietrich, Arne	American University of Beirut	Experimental Psychology	Rank 816
16	69,763	AB Atiyeh, Bishara	American University of Beirut Medical Center	Surgery	Rank 598
17	71,882	EM El-Fadel, M.	American University of Beirut	Environmental Sciences	Rank 386
18	72,448	OI Osman, Ibrahim H.	Suliman S. Olayan School of Business	Operations Research	Rank 259
19	72,575	SA Shihadeh, Alan	American University of Beirut	Public Health	Rank 644
20	78,856	AH Abu-Saad Huijer, Huda	American University of Beirut	Nursing	Rank 127
21	80,208	BK Badr, Kamal	Faculty of Medicine	Urology & Nephrology	Rank 911
22	81,295	BE Bouri, Elie	Adnan Kassar School of Business	Finance	Rank 127
23	88,781	HP Henkind, P.	American University of Beirut	Ophthalmology & Optometry	Rank 627
24	91,265	RD Roberts, David W.	Dartmouth-Hitchcock Medical Center	Neurology & Neurosurgery	Rank 6,032
25	101,307	SM Suidan, Makram T.	American University of Beirut	Environmental Engineering	Rank 451
26	103,707	WJ Weaver, John B.	Geisel School of Medicine at Dartmouth	Nuclear Medicine & Medical Imaging	Rank 935
27	104,561	KE Karam, Elie G.	Saint George Hospital University Medical Center	Psychiatry	Rank 1,832
28	105,811	GH Gali-Muhtasib, Hala	American University of Beirut	Oncology & Carcinogenesis	Rank 4,164
29	114,201	GA Ghauch, Antoine	American University of Beirut	Environmental Sciences	Rank 668
30	117,858	SA Sibai, Abla M.	American University of Beirut	General & Internal Medicine	Rank 1,504
31	118,657	ML Meho, Lokman I.	American University of Beirut	Information & Library Sciences	Rank 66
32	122,008	AG Araj, George F.	American University of Beirut Medical Center	Microbiology	Rank 3,014
33	129,749	SA Sharara, Ala I.	American University of Beirut Medical Center	Gastroenterology & Hepatology	Rank 1,747
34	130,698	YA Yassine, Ali	American University of Beirut	Design Practice & Management	Rank 65
35	137,159	PD Patra, Digambara	American University of Beirut	Analytical Chemistry	Rank 1,059
36	140,881	GN Ghaddar, Nesreen	American University of Beirut	Building & Construction	Rank 287
37	153,932	KL Karam, Lina J.	Lebanese American University	Artificial Intelligence & Image Processing	Rank 2,764
38	161,289	AM Al-Alaoui, Mohamad Adnan	American University of Beirut	Electrical & Electronic Engineering	Rank 479
39	173,717	UI Usta, Ihab M.	American University of Beirut Medical Center	Obstetrics & Reproductive Medicine	Rank 1,718
40	175,309	SW Sabra, W. A.	American University of Beirut	Nuclear & Particle Physics	Rank 2,877
41	176,796	MM Mawad, Michel	Gilbert and Rose-Marie Chagoury School of Medicine	Nuclear Medicine & Medical Imaging	Rank 1,691
42	180,229	BZ Beydoun, Z. R.	American University of Beirut	Energy	Rank 2,367
43	199,684	AJ Assaad, Joseph J.	University of Balamand	Building & Construction	Rank 439
44	210,167	YG Yared, Ghassan	Université Saint-Joseph de Beyrouth	Dentistry	Rank 1,326
45	217,186	BS BouJaoude, Saouma	American University of Beirut	Education	Rank 1,352
46	233,397	MM Mansour, Mohammad M.	American University of Beirut	Networking & Telecommunications	Rank 2,298
47	242,275	AH Artail, Hassan	American University of Beirut	Networking & Telecommunications	Rank 2,415
48	245,263	DM Darwish, Marwan	American University of Beirut	Mechanical Engineering & Transports	Rank 1,789
49	247,740	CR Chedid, Riad	American University of Beirut	Energy	Rank 3,405
50	251,218	GK Ghali, Kamel	American University of Beirut	Building & Construction	Rank 571
51	253,641	MS Matar, Samir F.	Lebanese German University	Inorganic & Nuclear Chemistry	Rank 1,742
52	258,302	AC Abou-Rjeily, Chadi	Lebanese American University	Networking & Telecommunications	Rank 2,575
53	289,689	AB Abboud, Bassam	Université Libanaise	General & Internal Medicine	Rank 3,915
54	296,272	SP Salameh, Pascale	Université Libanaise	General & Internal Medicine	Rank 4,013
55	302,886	JI Jawhar, Imad	Al Maaref University	Networking & Telecommunications	Rank 3,055
56	347,654	DZ Dawy, Zaher	American University of Beirut	Networking & Telecommunications	Rank 3,584
57	354,083	TY Tawk, Youssef	American University of Beirut	Networking & Telecommunications	Rank 3,669
58	362,270	SI Salti, Ibrahim	American University of Beirut	General & Internal Medicine	Rank 5,000
59	397,780	HW Habchi, W.	Lebanese American University	Mechanical Engineering & Transports	Rank 2,990
60	402,935	AS Adib, Salim	American University of Beirut	General & Internal Medicine	Rank 5,620
61	409,860	AW Ammar, Walid	Faculté de Médecine	General & Internal Medicine	Rank 5,726
62	528,313	KH Kanaan, Hadi Y.	Université Saint-Joseph de Beyrouth	Electrical & Electronic Engineering	Rank 2,033
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Frequently asked questions

How many scientists from Lebanon are in the 2022 Stanford Top 2% list?

71 scientists affiliated with Lebanon are on the 2022 single-year list, and 62 are on the career-long list.

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

On the 2022 career-long list, American University of Beirut has the most listed scientists from Lebanon, with 34. It is followed by American University of Beirut Medical Center with 8.

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

On the career-long list, Lebanon went from 48 scientists in 2020 to 62 in 2022, a change of +29.2%.

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.