Lebanon's Top 2% Scientists 2023

Lebanon has 72 scientists on the 2023 single-year Top 2% list, up 1.4% from 71 in 2022. That places Lebanon 66th in the world by number of listed scientists. American University of Beirut has the most listed scientists (25), followed by Lebanese American University (12).

Single Year

+1 (+1.4%) vs 2022

Career Data

No change vs 2022

World rank by count

#66

No change vs 2022

Institutes

-1 (-5.0%) vs 2022

Scientists in Lebanon on the list, by year

The single-year count has grown 29% since 2020.

Single-year list, change on the previous year

2021+19.6%

2022+6.0%

2023+1.4%

2024+45.8%

2025-6.7%

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

Single-year list2023

Show the list

All 72 scientists

Single-year list2023

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	1,573	BE Bouri, Elie	Lebanese American University	Finance	Rank 8
2	7,690	JR Jabr, Rabih A.	American University of Beirut	Energy	Rank 162
3	13,468	UM Umar, Muhammad	Adnan Kassar School of Business	Environmental Sciences	Rank 206
4	21,306	DM Deveci, Muhammet	Lebanese American University	Energy	Rank 476
5	25,494	AG Assaker, Guy	Adnan Kassar School of Business	Sport, Leisure & Tourism	Rank 118
6	26,068	ML Meho, Lokman I.	American University of Beirut	Information & Library Sciences	Rank 20
7	30,532	HM Harajli, Mohamed	American University of Beirut	Civil Engineering	Rank 108
8	30,709	BW Black, William C.	Dartmouth-Hitchcock Medical Center	Nuclear Medicine & Medical Imaging	Rank 111
9	32,170	DA Dietrich, Arne	American University of Beirut	Experimental Psychology	Rank 439
10	34,760	FM Fakhoury, Marc	Lebanese American University	Neurology & Neurosurgery	Rank 1,806
11	36,989	GA Ghauch, Antoine	American University of Beirut	Environmental Sciences	Rank 588
12	42,527	OC Obermeyer, Carla Makhlouf	American University of Beirut	Public Health	Rank 459
13	44,064	TA Taher, Ali T.	American University of Beirut Medical Center	Immunology	Rank 979
14	44,802	CA Chamseddine, Ali H.	American University of Beirut	Nuclear & Particle Physics	Rank 521
15	51,295	AJ Assaad, Joseph J.	University of Balamand	Building & Construction	Rank 341
16	51,457	DE Demidenko, Eugene	Geisel School of Medicine at Dartmouth	Oncology & Carcinogenesis	Rank 1,824
17	53,391	FG Fuleihan, Ghada El Hajj	American University of Beirut	Endocrinology & Metabolism	Rank 920
18	56,191	RM Ramadan, Mohamad	The International University of Beirut	Energy	Rank 1,340
19	66,628	SA Sibai, Abla M.	American University of Beirut	General & Internal Medicine	Rank 913
20	68,741	KE Karam, Elie	Saint George Hospital University Medical Center	Psychiatry	Rank 1,185
21	68,767	YK Yammine, Kaissar	Lebanese American University Medical Center-Rizk Hospital	Orthopedics	Rank 363
22	69,935	SP Salameh, Pascale	Université Libanaise	General & Internal Medicine	Rank 955
23	69,956	BK Brindhadevi, Kathirvel	Lebanese American University	Energy	Rank 1,670
24	72,411	SZ Sabir, Zulqurnain	Lebanese American University	Numerical & Computational Mathematics	Rank 123
25	72,632	GH Gali-Muhtasib, Hala	American University of Beirut	Oncology & Carcinogenesis	Rank 2,635
26	80,620	HN Hawi, Nazir	Notre Dame University, Lebanon	Education	Rank 812
27	82,426	AB Atiyeh, Bishara S.	American University of Beirut Medical Center	Surgery	Rank 425
28	83,341	AW Ammar, Walid	Faculté de Médecine	General & Internal Medicine	Rank 1,102
29	85,216	PD Patra, Digambara	American University of Beirut	Chemical Physics	Rank 1,086
30	86,124	OI Osman, Ibrahim H.	Suliman S. Olayan School of Business	Operations Research	Rank 397
31	89,792	ZF Ziyadeh, Fuad N.	Faculty of Medicine	Urology & Nephrology	Rank 639
32	91,267	IO Itani, Omar S.	Adnan Kassar School of Business	Marketing	Rank 501
33	99,194	MA Mansour, Ahmad M.	American University of Beirut	Ophthalmology & Optometry	Rank 541
34	102,381	AA Albadarin, Ahmad B.	American University of Beirut	Chemical Engineering	Rank 809
35	105,236	HN Hwalla, Nahla	American University of Beirut	Nutrition & Dietetics	Rank 734
36	113,495	TY Tawk, Youssef	American University of Beirut	Networking & Telecommunications	Rank 1,144
37	119,054	BA Bazarbachi, Ali	American University of Beirut Medical Center	Immunology	Rank 2,470
38	128,267	KS Kanj, Souha S.	American University of Beirut Medical Center	Microbiology	Rank 2,937
39	129,607	HJ Haddad, John J.	Beirut Arab University	Biochemistry & Molecular Biology	Rank 2,563
40	129,722	EF El-Jardali, Fadi	American University of Beirut	Health Policy & Services	Rank 322
41	129,867	EM Eloubeidi, Mohamad	Faculty of Medicine	Gastroenterology & Hepatology	Rank 1,422
42	143,743	HP Henkind, P.	American University of Beirut	Ophthalmology & Optometry	Rank 800
43	144,585	SS Saab, Samer S.	Lebanese American University	Industrial Engineering & Automation	Rank 1,382
44	148,202	KM Khan, M. Ijaz	Lebanese American University	Chemical Physics	Rank 1,775
45	148,315	HW Habchi, W.	Lebanese American University	Mechanical Engineering & Transports	Rank 1,333
46	149,636	AM Awad, Mariette	American University of Beirut	Artificial Intelligence & Image Processing	Rank 4,665
47	158,042	SA Sharara, Ala	American University of Beirut Medical Center	Gastroenterology & Hepatology	Rank 1,693
48	166,708	ZR Zurayk, R.	American University of Beirut	Agronomy & Agriculture	Rank 1,167
49	171,990	AM Abboud, Miguel	American University of Beirut Medical Center	Oncology & Carcinogenesis	Rank 6,157
50	175,016	YA Yassine, Ali	American University of Beirut	Design Practice & Management	Rank 122
51	183,559	HS Hallit, Souheil	Holy Spirit University of Kaslik (USEK)	Psychiatry	Rank 2,738
52	186,711	AC Abou-Rjeily, Chadi	Lebanese American University	Networking & Telecommunications	Rank 1,985
53	196,872	GH Greige-Gerges, Hélène	Université Libanaise	Pharmacology & Pharmacy	Rank 1,507
54	199,450	AO Abbas, Ossama	American University of Beirut Medical Center	Dermatology & Venereal Diseases	Rank 775
55	209,470	AA Abdel-Rahman, Abdel Fattah M.	American University of Beirut	Geology	Rank 258
56	224,010	KS Kharroubi, Samer A.	American University of Beirut	Health Policy & Services	Rank 589
57	225,901	JI Jawhar, Imad	Al Maaref University	Networking & Telecommunications	Rank 2,457
58	228,720	SO Salman, Ola	American University of Beirut	Networking & Telecommunications	Rank 2,503
59	246,386	SM Seoud, Mudieddine	American University of Beirut Medical Center	Obstetrics & Reproductive Medicine	Rank 1,652
60	250,798	FM Fawaz, Mirna	Beirut Arab University	Nursing	Rank 742
61	274,851	AH Abu-Saad Huijer, Huda	University of Balamand	Nursing	Rank 862
62	290,418	KM Khabbaz, Maurice J.	American University of Beirut	Networking & Telecommunications	Rank 3,249
63	317,445	YG Yared, Ghassan	Université Saint-Joseph de Beyrouth	Dentistry	Rank 1,602
64	323,067	FW Fawaz, Wissam	Lebanese American University	Networking & Telecommunications	Rank 3,681
65	337,550	CA Chehab, Ali	American University of Beirut	Networking & Telecommunications	Rank 3,855
66	365,456	HA Hamdan, Abdul Latif	American University of Beirut Medical Center	Otorhinolaryngology	Rank 840
67	385,456	FA Fardoun, Abbas	Al Maaref University	Electrical & Electronic Engineering	Rank 1,702
68	446,565	AB Abboud, Bassam	Université Libanaise	General & Internal Medicine	Rank 4,981
69	505,603	EM Elkhoury, Michel	Lebanese American University	Aerospace & Aeronautics	Rank 1,008
70	534,431	SI Salti, Ibrahim	American University of Beirut Medical Center	General & Internal Medicine	Rank 5,831
71	555,140	SF Saleh, Fatima	Beirut Arab University	General & Internal Medicine	Rank 6,047
72	936,206	El Hajj, Sleiman	Lebanese American University	Literary Studies	Rank 238
No scientists match this filter.

Showing 1 to 72 of 72 Show

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Single-year list2023

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Frequently asked questions

How many scientists from Lebanon are in the 2023 Stanford Top 2% list?

72 scientists affiliated with Lebanon are on the 2023 single-year list, and 62 are on the career-long list.

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

On the 2023 single-year list, American University of Beirut has the most listed scientists from Lebanon, with 25. It is followed by Lebanese American University with 12.

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

On the single-year list, Lebanon went from 56 scientists in 2020 to 72 in 2023, a change of +28.6%.

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.