Lebanon's Top 2% Scientists 2024

Lebanon has 105 scientists on the 2024 single-year Top 2% list, up 45.8% from 72 in 2023. That places Lebanon 61st in the world by number of listed scientists, up 5 places. American University of Beirut has the most listed scientists (43), followed by Lebanese American University (38).

Single Year

105

+33 (+45.8%) vs 2023

Career Data

+16 (+25.8%) vs 2023

World rank by count

#61

up 5 places vs 2023

Institutes

-1 (-5.3%) vs 2023

Scientists in Lebanon on the list, by year

The single-year count has grown 88% 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 list2024

Show the list

All 105 scientists

Single-year list2024

The first 100 are free to browse.

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Rank in Lebanon	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	679	BD Baleanu, Dumitru	Lebanese American University	Applied Mathematics	Rank 3
2	725	PU Pata, Ugur Korkut	Lebanese American University	Environmental Sciences	Rank 13
3	918	BE Bouri, Elie	Lebanese American University	Finance	Rank 3
4	3,336	KM Khan, M. Ijaz	Lebanese American University	Mechanical Engineering & Transports	Rank 30
5	6,122	UM Umar, Muhammad	Lebanese American University	Environmental Sciences	Rank 114
6	6,768	AE Akl, Elie A.	American University of Beirut	General & Internal Medicine	Rank 127
7	7,277	AZ Ahmed, Zahoor	Lebanese American University	Environmental Sciences	Rank 133
8	7,603	JR Jabr, Rabih A.	American University of Beirut	Energy	Rank 182
9	8,886	GT Gadekallu, Thippa Reddy	Lebanese American University	Networking & Telecommunications	Rank 83
10	9,864	Razzaq, Asif	Lebanese American University	Environmental Sciences	Rank 184
11	14,501	KM Kartal, Mustafa Tevfik	Lebanese American University	Environmental Sciences	Rank 279
12	18,866	KJ Khatib, Jamal	Beirut Arab University	Building & Construction	Rank 138
13	20,257	AG Assaker, Guy	Lebanese American University	Sport, Leisure & Tourism	Rank 105
14	21,433	DA Dietrich, Arne	American University of Beirut	Experimental Psychology	Rank 328
15	22,356	HM Harajli, Mohamed	American University of Beirut	Civil Engineering	Rank 90
16	23,375	ST Sulaiman, Tukur Abdulkadir	Lebanese American University	Optoelectronics & Photonics	Rank 36
17	26,171	US Ullah, Sana	Lebanese American University	Environmental Sciences	Rank 504
18	27,220	ML Meho, Lokman	American University of Beirut	Information & Library Sciences	Rank 25
19	28,190	QS Qureshi, Sania	Lebanese American University	Mathematical Physics	Rank 16
20	29,075	Waheed, Yasir	Lebanese American University	General & Internal Medicine	Rank 421
21	32,006	FM Fakhoury, Marc	Lebanese American University	Neurology & Neurosurgery	Rank 1,583
22	32,833	OC Obermeyer, Carla Makhlouf	American University of Beirut	Public Health	Rank 325
23	38,807	SZ Sabir, Zulqurnain	Lebanese American University	Applied Mathematics	Rank 114
24	44,252	HN Hawi, Nazir	Notre Dame University, Lebanon	Education	Rank 522
25	45,632	TA Taher, Ali T.	American University of Beirut	Immunology	Rank 929
26	46,463	Hosseini, Kamyar	Lebanese American University	Optics	Rank 211
27	47,219	RM Ramadan, Mohamad	The International University of Beirut	Energy	Rank 1,223
28	48,387	YK Yammine, Kaissar	Lebanese American University Medical Center-Rizk Hospital	Orthopedics	Rank 194
29	51,727	AJ Assaad, Joseph	University of Balamand	Building & Construction	Rank 393
30	54,396	GA Ghauch, Antoine	American University of Beirut	Environmental Sciences	Rank 1,058
31	57,120	KU Khan, Umair	Lebanese American University	Energy	Rank 1,515
32	60,455	PD Patra, Digambara	American University of Beirut	Chemical Physics	Rank 808
33	62,017	FM Farah, Maya F.	Lebanese American University	Marketing	Rank 385
34	62,148	KE Karam, Elie G.	Institute for Development, Research, Advocacy and Applied Care, Beirut	Psychiatry	Rank 1,058
35	64,465	BA Bokhari, Awais	Lebanese American University	Environmental Sciences	Rank 1,248
36	68,228	AB Atiyeh, Bishara	American University of Beirut	Surgery	Rank 306
37	73,238	BA Bazarbachi, Ali	American University of Beirut	Immunology	Rank 1,478
38	77,536	EF El-Hajj Fuleihan, Ghada	American University of Beirut	Endocrinology & Metabolism	Rank 1,155
39	80,604	SU Shahzad, Umer	Lebanese American University	Environmental Sciences	Rank 1,635
40	80,751	SY Sidani, Yusuf M.	American University of Beirut	Business & Management	Rank 1,800
41	84,207	MB Metcalfe, Beverly Dawn	ESA Business School	Business & Management	Rank 1,871
42	91,997	AM Awad, Mariette	American University of Beirut	Artificial Intelligence & Image Processing	Rank 3,495
43	93,292	KS Kanj, Souha S.	American University of Beirut	Microbiology	Rank 1,917
44	94,066	SA Shihadeh, Alan	American University of Beirut	Public Health	Rank 1,015
45	95,754	SA Sibai, Abla Mehio	American University of Beirut	General & Internal Medicine	Rank 1,225
46	95,877	RL Roever, Leonardo	Lebanese American University	Cardiovascular System & Hematology	Rank 2,415
47	96,094	RZ Ramadan, Zahy	Lebanese American University	Marketing	Rank 558
48	96,736	AA Albadarin, Ahmad B.	American University of Beirut	Chemical Engineering	Rank 760
49	96,795	Athari, Seyed Alireza	Holy Spirit University of Kaslik (USEK)	Economics	Rank 1,200
50	96,888	GD Goodman, David C.	Geisel School of Medicine at Dartmouth	Pediatrics	Rank 300
51	97,830	GH Gali-Muhtasib, Hala	American University of Beirut	Oncology & Carcinogenesis	Rank 3,222
52	98,166	EF El-Jardali, Fadi	American University of Beirut	Health Policy & Services	Rank 217
53	99,299	CA Chamseddine, Ali H.	American University of Beirut	Nuclear & Particle Physics	Rank 1,178
54	104,192	KR Khishfe, Rola	American University of Beirut	Education	Rank 1,258
55	104,312	MA Mourad, Azzam	Lebanese American University	Networking & Telecommunications	Rank 1,146
56	117,194	GN Ghaddar, Nesreen	American University of Beirut	Building & Construction	Rank 900
57	119,927	AM Ali, Muhammad	Beirut Arab University	Food Science	Rank 1,346
58	120,073	OI Osman, Ibrahim H.	American University of Beirut	Operations Research	Rank 560
59	128,669	HN Hwalla, Nahla	American University of Beirut	Nutrition & Dietetics	Rank 844
60	130,144	RS Rashid, Saima	Lebanese American University	Applied Mathematics	Rank 342
61	130,266	HS Hallit, Souheil	Holy Spirit University of Kaslik (USEK)	Psychiatry	Rank 2,008
62	131,623	UR ur Rahman, Mati	Lebanese American University	Fluids & Plasmas	Rank 875
63	133,876	ZF Ziyadeh, Fuad N.	American University of Beirut	Urology & Nephrology	Rank 900
64	134,328	SS Saab, Samer S.	Lebanese American University	Industrial Engineering & Automation	Rank 1,426
65	135,978	ZR Zurayk, Rami	American University of Beirut	Agronomy & Agriculture	Rank 942
66	138,762	SA Sharara, Ala I.	American University of Beirut	Gastroenterology & Hepatology	Rank 1,475
67	141,155	MA Mansour, Ahmad M.	American University of Beirut	Ophthalmology & Optometry	Rank 706
68	144,321	AW Ammar, Walid	Université Saint-Joseph de Beyrouth	General & Internal Medicine	Rank 1,760
69	147,743	TH Tamim, Hani	American University of Beirut	Emergency & Critical Care Medicine	Rank 467
70	153,136	AA Abdel-Rahman, Abdel Fattah M.	American University of Beirut	Geology	Rank 166
71	157,327	HJ Haddad, John J.	Beirut Arab University	Biochemistry & Molecular Biology	Rank 2,784
72	164,161	FM Farman, Muhammad	Lebanese American University	Applied Mathematics	Rank 435
73	171,982	ZJ Zeaiter, Joseph	American University of Beirut	Energy	Rank 4,939
74	172,517	TY Tawk, Youssef	American University of Beirut	Networking & Telecommunications	Rank 1,949
75	180,863	SA Shamseddine, Ali	American University of Beirut	Oncology & Carcinogenesis	Rank 5,988
76	215,414	SR Shah, Rasool	Lebanese American University	Nuclear & Particle Physics	Rank 2,476
77	222,672	JI Jawhar, Imad	Al Maaref University	Networking & Telecommunications	Rank 2,576
78	224,158	AO Abbas, Ossama	American University of Beirut	Dermatology & Venereal Diseases	Rank 786
79	228,623	KM Khaled, Mahmoud	Lebanese International University	Energy	Rank 6,699
80	229,717	GH Greige-Gerges, Helene	Université Libanaise	Pharmacology & Pharmacy	Rank 1,796
81	230,381	SO Salman, Ola	American University of Beirut	Networking & Telecommunications	Rank 2,678
82	237,233	MS Matar, Samir F.	Lebanese German University	Inorganic & Nuclear Chemistry	Rank 1,055
83	238,225	BM Belarbi, M. O.	Lebanese American University	Mechanical Engineering & Transports	Rank 2,228
84	250,817	MA Mégarbané, Andre	Lebanese American University	Genetics & Heredity	Rank 726
85	252,576	HW Habchi, Wassim	Lebanese American University	Mechanical Engineering & Transports	Rank 2,336
86	258,923	TJ Tekli, Joe	Lebanese American University	Artificial Intelligence & Image Processing	Rank 9,439
87	291,313	SH Sarieddeen, Hadi	American University of Beirut	Networking & Telecommunications	Rank 3,482
88	300,727	AC Abou-Rjeily, Chadi	Lebanese American University	Networking & Telecommunications	Rank 3,609
89	300,856	SS Sharafeddine, Sanaa	American University of Beirut	Networking & Telecommunications	Rank 3,614
90	303,969	HH Huijer, Huda Abu Saad	University of Balamand	Nursing	Rank 968
91	307,309	CJ Costantine, Joseph	American University of Beirut	Networking & Telecommunications	Rank 3,711
92	322,704	MM Mehanna, Mohamed	Lebanese American University	Pharmacology & Pharmacy	Rank 2,669
93	330,282	BA Baraka, Anis	American University of Beirut	Anesthesiology	Rank 899
94	333,441	Bayda, Samer	Jinan University	Medicinal & Biomolecular Chemistry	Rank 1,707
95	348,191	GJ Ghafari, Joseph G.	American University of Beirut	Dentistry	Rank 1,732
96	367,878	SF Saleh, Fatima	Beirut Arab University	General & Internal Medicine	Rank 4,146
97	370,997	EM Elkhoury, Michel	Lebanese American University	Aerospace & Aeronautics	Rank 650
98	396,661	HA Hamdan, Abdul Latif	American University of Beirut	Otorhinolaryngology	Rank 855
99	425,694	MK Mershad, Khaleel	Lebanese American University	Networking & Telecommunications	Rank 5,273
100	429,410	Hardan, Louis S.	Université Saint-Joseph de Beyrouth	Dentistry	Rank 2,217
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You are seeing the first 100. 5 more are on the 2024 single-year list.

Ranks 101 to 105The whole list, not only the top 100.

Every year since 2020Single Year and Career Data.

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Single-year list2024

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Single-year list2024

Saudi Arabia1,684 scientistsin 2024

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Frequently asked questions

How many scientists from Lebanon are in the 2024 Stanford Top 2% list?

105 scientists affiliated with Lebanon are on the 2024 single-year list, and 78 are on the career-long list.

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

On the 2024 single-year list, American University of Beirut has the most listed scientists from Lebanon, with 43. It is followed by Lebanese American University with 38.

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 105 in 2024, a change of +87.5%.

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.