Lebanon's Top 2% Scientists 2025

Lebanon has 98 scientists on the 2025 single-year Top 2% list, down 6.7% from 105 in 2024. That places Lebanon 66th in the world by number of listed scientists, down 5 places. American University of Beirut has the most listed scientists (42), followed by Lebanese American University (24).

Single Year

-7 (-6.7%) vs 2024

Career Data

+14 (+17.9%) vs 2024

World rank by count

#66

down 5 places vs 2024

Institutes

+3 (+16.7%) vs 2024

Scientists in Lebanon on the list, by year

The single-year count has grown 75% 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 list2025

Show the list

All 98 scientists

Single-year list2025

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	777	BE Bouri, Elie I.	Lebanese American University	Finance	Rank 2
2	822	ZM Zembylas, Michalinos	Lebanese American University	Education	Rank 14
3	1,316	BD Baleanu, Dumitru I.	Lebanese American University	Applied Mathematics	Rank 6
4	1,625	Kirikkaleli, Dervis	Lebanese American University	Environmental Sciences	Rank 37
5	6,524	AE Akl, Elie A.	American University of Beirut	General & Internal Medicine	Rank 129
6	6,665	UM Umar, Muhammad	Lebanese American University	Environmental Sciences	Rank 139
7	9,608	KS Kadry, Seifedine Nimer	Lebanese American University	Artificial Intelligence & Image Processing	Rank 468
8	10,032	JR Jabr, Rabih A.	American University of Beirut	Energy	Rank 269
9	17,302	SZ sabir, Zulqurnain	Lebanese American University	Artificial Intelligence & Image Processing	Rank 817
10	17,539	AG Assaker, Guy	Lebanese American University	Sport, Leisure & Tourism	Rank 96
11	18,289	KJ Khatib, Jamal M.	Beirut Arab University	Building & Construction	Rank 143
12	29,831	DA Dietrich, Arne	American University of Beirut	Experimental Psychology	Rank 396
13	37,126	Athari, Seyed Alireza	Holy Spirit University of Kaslik (USEK)	Economics	Rank 534
14	38,415	RM Ramadan, Mohamad	Lebanese International University	Energy	Rank 1,062
15	41,265	ML Meho, Lokman I.	American University of Beirut	Information & Library Sciences	Rank 37
16	42,503	FM Fakhoury, Marc	Lebanese American University	Neurology & Neurosurgery	Rank 1,942
17	46,906	TA Taher, Ali T.	American University of Beirut	Immunology	Rank 893
18	53,226	HM Harajlí, Mohamed H.	American University of Beirut	Civil Engineering	Rank 232
19	60,009	YK Yammine, K. Cesar	Lebanese American University	Orthopedics	Rank 271
20	61,549	KE Karam, Elie Georges	Saint George Hospital University Medical Center	Psychiatry	Rank 1,006
21	62,649	AJ Assaad, Joseph Jean	University of Balamand	Building & Construction	Rank 534
22	63,888	EF El-Hajj Fuleihan, Ghada A.	American University of Beirut	Endocrinology & Metabolism	Rank 917
23	64,532	KF Khuri, Fadlo R.	American University of Beirut	Oncology & Carcinogenesis	Rank 1,947
24	65,414	AB Atiyeh, Bishara Shafic	American University of Beirut	Surgery	Rank 250
25	67,414	FM Farah, Maya F.	Adnan Kassar School of Business	Marketing	Rank 423
26	67,833	SR Sawaya, Raymond E.	American University of Beirut	Oncology & Carcinogenesis	Rank 2,049
27	74,864	BC Brun, Cathrine	Centre for Lebanese Studies	Geography	Rank 382
28	76,613	PD Patra, Digambara	American University of Beirut	Chemical Physics	Rank 926
29	77,913	DA Dabbous, Amal	Université Saint-Joseph de Beyrouth	Business & Management	Rank 1,771
30	78,309	SY Sidani, Yusuf M.	Suliman S. Olayan School of Business	Business & Management	Rank 1,780
31	80,386	KS Kanj, Souha S.	American University of Beirut	Microbiology	Rank 1,540
32	84,968	RZ Ramadan, Zahy Bashir	Lebanese American University	Marketing	Rank 517
33	86,752	GA Ghauch, Antoine	American University of Beirut	Environmental Sciences	Rank 2,014
34	88,573	DL Dagher, Leila	Lebanese American University	Energy	Rank 2,679
35	90,173	EK El Khoury, Rim M.	Lebanese American University	Business & Management	Rank 2,003
36	91,951	BA Bazarbachi, Ali Abdul Hamid	American University of Beirut	Immunology	Rank 1,688
37	93,850	SS Saab, Samer S.	Lebanese American University	Industrial Engineering & Automation	Rank 1,013
38	94,515	KR Khishfe, Rola	American University of Beirut	Education	Rank 1,195
39	95,708	SP Salameh, Pascale R.	Université Libanaise	General & Internal Medicine	Rank 1,236
40	97,912	KS Kumar, Shiv	International Center for Agricultural Researchin the	Plant Biology & Botany	Rank 1,578
41	98,300	EA El-Kassar, Abdul Nasser	Lebanese American University	Business & Management	Rank 2,161
42	98,391	MA Mehio-Sibai, Abla Mehio	American University of Beirut	General & Internal Medicine	Rank 1,266
43	98,998	HS Hallit, Souheil R.	Holy Spirit University of Kaslik (USEK)	Psychiatry	Rank 1,528
44	103,684	Khalil, Mahmoud I.	Beirut Arab University	Polymers	Rank 1,032
45	104,028	AM Awad, Mariette	American University of Beirut	Artificial Intelligence & Image Processing	Rank 4,442
46	104,137	HN Hwalla, Nahla C.	American University of Beirut	Nutrition & Dietetics	Rank 659
47	105,002	HN Hawi, Nazir S.	Notre Dame University-Loauize	Education	Rank 1,330
48	111,402	MA Mourad, Azzam	Lebanese American University	Networking & Telecommunications	Rank 1,325
49	112,702	GH Gali-Muhtasib, Hala Uthman	American University of Beirut	Oncology & Carcinogenesis	Rank 3,430
50	113,109	SR Shah, Rasool	Lebanese American University	Nuclear & Particle Physics	Rank 1,425
51	115,330	EF El-Jardali, Fadi	American University of Beirut	Health Policy & Services	Rank 237
52	118,009	GN Ghaddar, Nesreen K.	American University of Beirut	Building & Construction	Rank 1,037
53	132,707	ZF Ziyadeh, Fuad N.	American University of Beirut	Urology & Nephrology	Rank 856
54	132,767	HJ Hashash, Jana G.	American University of Beirut	Gastroenterology & Hepatology	Rank 1,350
55	136,814	BN Baba, Nadim Z.	Université Saint-Joseph de Beyrouth	Dentistry	Rank 607
56	146,455	OT Oweis, T. Y.	International Center for Agricultural Research in the Dry Areas Syria	Agronomy & Agriculture	Rank 1,081
57	150,885	AW Ammar, Walid	Université Saint-Joseph de Beyrouth	General & Internal Medicine	Rank 1,849
58	151,458	SA Sharara, Ala I.	American University of Beirut	Gastroenterology & Hepatology	Rank 1,510
59	154,513	FM Fellows, Michael R.	Lebanese American University	Computation Theory & Mathematics	Rank 255
60	166,203	MA Mansour, Ahmad M.	American University of Beirut	Ophthalmology & Optometry	Rank 814
61	167,235	MR Mustafa, Reem A.	American University of Beirut	Epidemiology	Rank 184
62	173,540	AM Abboud, Miguel Raul	American University of Beirut	Immunology	Rank 3,050
63	177,042	TH Tamim, Hani Mohammed	American University of Beirut	Emergency & Critical Care Medicine	Rank 523
64	184,609	BR Barwell, Richard	American University of Beirut	Education	Rank 2,320
65	188,763	ZR Zurayk, Rami A.	American University of Beirut	Agronomy & Agriculture	Rank 1,427
66	191,815	SA Shamseddine, Ali I.	American University of Beirut	Oncology & Carcinogenesis	Rank 5,901
67	192,386	KM Khaled, Mahmoud	Lebanese International University	Energy	Rank 6,159
68	194,904	GH Greige-Gerges, Hélène	Université Libanaise	Pharmacology & Pharmacy	Rank 1,477
69	198,449	WA Worqlul, Abeyou Wale	International Center for Agricultural Research in the Dry Areas Syria	Environmental Engineering	Rank 1,230
70	206,763	HJ Haddad, John J.	Faculty of Medicine	Biochemistry & Molecular Biology	Rank 3,253
71	208,425	KS Kharroubi, Samer A.	American University of Beirut	Health Policy & Services	Rank 455
72	218,481	FM Fawaz, Mirna A.	Beirut Arab University	Nursing	Rank 636
73	220,933	AA Abdel-Rahman, Abdel Fattah M.	American University of Beirut	Geology	Rank 254
74	232,203	SH Sarieddeen, Hadi	American University of Beirut	Networking & Telecommunications	Rank 2,910
75	233,691	MA Megarbane, Andre	Lebanese American University	Genetics & Heredity	Rank 629
76	257,211	SS Sharafeddine, Sanaa	American University of Beirut	Networking & Telecommunications	Rank 3,264
77	257,473	IY Illouz, Yves Gérard	American University of Beirut	Surgery	Rank 1,411
78	265,730	TY Tawk, Youssef A.	American University of Beirut	Networking & Telecommunications	Rank 3,380
79	271,182	MS Matar, Samir F.	Lebanese German University	Inorganic & Nuclear Chemistry	Rank 1,124
80	274,073	JI Jawhar, Imad Hussein	Al Maaref University	Networking & Telecommunications	Rank 3,483
81	274,749	AO Abbas, Ossama M.	American University of Beirut	Dermatology & Venereal Diseases	Rank 1,009
82	275,340	Hardan, Louis S.	Université Saint-Joseph de Beyrouth	Dentistry	Rank 1,338
83	277,265	KB Kurdahi Badr, Lina Kurdahi	American University of Beirut	Nursing	Rank 863
84	278,118	AC Abou-Rjeily, Chadi	Lebanese American University	Networking & Telecommunications	Rank 3,544
85	281,002	HW Habchi, Wassim F.	Lebanese American University	Mechanical Engineering & Transports	Rank 2,719
86	305,608	Bayda, Samer	Jinan University	Medicinal & Biomolecular Chemistry	Rank 1,500
87	321,806	CA Chehab, Ali	American University of Beirut	Networking & Telecommunications	Rank 4,136
88	329,236	MK Mershad, Khaleel W.	Lebanese American University	Networking & Telecommunications	Rank 4,228
89	338,319	MM Mehanna, Mohammed Maher	Lebanese American University	Pharmacology & Pharmacy	Rank 2,842
90	348,663	AM Al-Alaoui, Mohamad Adnan	American University of Beirut	Electrical & Electronic Engineering	Rank 1,608
91	369,044	AH Abu-Saad, Huda Huijer	University of Balamand	Nursing	Rank 1,289
92	395,906	BA Baraka, Anis Shehata	American University of Beirut	Anesthesiology	Rank 1,079
93	420,861	SF Saleh, Fatima A.	Beirut Arab University	General & Internal Medicine	Rank 4,722
94	459,418	HA Haile, Aynalem	International Center for Agricultural Research in the Dry Areas Syria	Dairy & Animal Science	Rank 1,617
95	477,069	SF Soares Filho, Adauto Martins	Federal Ministry of Health	General & Internal Medicine	Rank 5,300
96	481,018	FA Fardoun, Abbas Ahmad	Al Maaref University	Electrical & Electronic Engineering	Rank 2,384
97	493,104	EM Elkhoury, Michel	Lebanese American University	Aerospace & Aeronautics	Rank 994
98	693,161	OH Osman, Hibah O.	Balsam Lebanese Center for Palliative Care	General & Internal Medicine	Rank 7,443
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Showing 1 to 98 of 98 Show

Countries with a similar count

Single-year list2025

Slovakia122 scientists

Ukraine122 scientists

Estonia108 scientists

Luxembourg90 scientists

Tunisia81 scientists

Algeria80 scientists

Explore other countries

Single-year list2025

Saudi Arabia2,110 scientists

Israel1,637 scientists

Turkey1,564 scientists

United Arab Emirates663 scientists

Qatar277 scientists

Iraq276 scientists

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Frequently asked questions

How many scientists from Lebanon are in the 2025 Stanford Top 2% list?

98 scientists affiliated with Lebanon are on the 2025 single-year list, and 92 are on the career-long list.

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

On the 2025 single-year list, American University of Beirut has the most listed scientists from Lebanon, with 42. It is followed by Lebanese American University with 24.

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 98 in 2025, a change of +75.0%.

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.