PNAS (Proceedings of the National Academy of Sciences)

《美国国家科学院院刊》（Proceedings of the National Academy of Sciences of the United States of America，通常简称为PNAS）是美国国家科学院的官方学术周刊。创刊于1915年。院刊出版前沿研究报告、述评、综述、前瞻、学术讨论会论文等。该刊覆盖生物学、化学、物理学、数学和社会科学。

《美国国家科学院院刊》拥有广泛的读者群，尤其是世界各地从事基础科学领域研究的科学工作者。与《自然》和《科学》一样，是世界上最负盛名的基础科学领域的学术杂志之一。

The Proceedings of the National Academy of Sciences of the United States of America, usually referred to as PNAS, is the official journal of the United States National Academy of Sciences (NAS). PNAS is an important scientific journal that printed its first issue in 1915 and continues to publish highly cited research reports, commentaries, reviews, perspectives, feature articles, profiles, letters to the editor, and actions of the Academy. Coverage in PNAS broadly spans the biological, physical, and social sciences. Although most of the papers published in the journal are in the biomedical sciences, PNAS recruits papers and publishes special features in the physical and social sciences and in mathematics. PNAS is published weekly in print, and daily online in PNAS Early Edition.

PNAS was established by NAS in 1914, with its first issue published in 1915. The NAS itself had been founded in 1863 as a private institution, but chartered by the US Congress, with the goal to "investigate, examine, experiment, and report upon any subject of science or art." By 1914, the Academy was well established.