The National Academy of Sciences may refer to:

• National Academy of Sciences of Argentina
• Azerbaijan National Academy of Sciences
• National Academy of Sciences of the Republic of Korea
• Armenian Academy of Sciences
• National Academy of Sciences of Belarus
• Estonian Academy of Sciences
• French Academy of Sciences
• Georgian Academy of Sciences
• Latvian Academy of Sciences
• Hungarian Academy of Sciences
• Academy of Sciences of Moldova
• Russian Academy of Sciences
• Turkish Academy of Sciences
• United States National Academy of Sciences
• National Academy of Sciences of Ukraine
• Royal Dutch Academy of Sciences
• The Royal Academies for Science and the Arts of Belgium
• Pakistan Academy of Sciences
• National Academy of Sciences, India

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