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The National Academy of Sciences of the Republic of Armenia (NAS RA) (Armenian: Հայաստանի Հանրապետության գիտությունների ազգային ակադեմիա, ՀՀ ԳԱԱ, Hayastani Hanrapetut’yan gitut’yunneri azgayin akademia) is the Armenian national academy, functioning as the primary body that conducts research and coordinates activities in the fields of science and social sciences in Armenia. It is a member of the International Science Council.

The Academy of Sciences of the Armenian Soviet Socialist Republic was founded on 10 November 1943, on the basis of the Armenian Branch of the Soviet Academy of Sciences, which was established almost 10 years earlier, in 1935. Among its founders were Joseph Orbeli, Stepan Malkhasyants, Ivan Gevorkian and Victor Ambartsumian; Orbeli became the first president of the academy.

• Joseph Orbeli (1943–1947)
• Viktor Ambartsumian (1947–1993)
• Fadey Sargsyan (1993–2006)
• Radik Martirosyan (2006–2021)
• Ashot Saghyan (2021-present)

Division of Mathematical and Technical Sciences

• Institute of Mathematics
• Institute of Mechanics
• Institute for Informatics and Automation Problems

Division of Physics and Astrophysics

• Byurakan Astrophysical Observatory
• Institute of Radiophysics & Electronics
• Institute of Applied Problems of Physics
• Institute for Physical Research

Division of Natural Sciences

• Center for Ecological Noosphere Studies
• Institute of Biochemistry
• Institute of Botany
• G.S.Davtyan Institute of Hydroponics Problems
• Scientific and Production Center Armbiotechnology
• Institute of Biotechnology Scientific and Production Center "Armbiotechnology"
• "Institute of Microbiology" Scientific and Production Center "Armbiotechnology"
• Division of Natural Sciences Microbial Depository Center
• Institute of Molecular Biology
• Institute of Physiology
• Scientific Center of Zoology and Hydroecology
• Scientific Center of Zoology and Hydroecology- Institute of Zoology
• Scientific Center of Zoology and Hydroecology- Institute of Hydroecology and Ichthyology

Division of Chemistry and Earth Sciences

• Scientific Technological Center of Organic and Pharmaceutical Chemistry
• Institute of Fine Organic Chemistry of Scientific - Technological Center of Organic and Pharmaceutical Chemistry
• Institute of Organic Chemistry of Scientific - Technological Center of Organic and Pharmaceutical Chemistry
• Molecular Structure Research Center of Scientific - Technological Center of Organic and Pharmaceutical Chemistry
• Institute of Chemical Physics
• Institute of General and Inorganic Chemistry
• Institute of Geological Sciences
• Institute of Geophysics and Engineering Seismology after A. Nazarov

Division of Armenology and Social Sciences

• Institute of History
• Institute of Philosophy and Law
• M. Kotanyan Institute of Economics
• Institute of Archaeology and Ethnography
• Institute of Oriental Studies
• H. Acharian Institute of Language
• M. Abeghyan Institute of Literature
• Institute of Art
• Museum-Institute of Genocide
• Shirak Armenology Research Center
• Armenian Encyclopedia Publishing House
• All Armenian Foundation Financing Armenological Studies

• Education in Armenia
• Karlen G. Adamyan