美国国家医学图书馆（英语：The United States National Library of Medicine，NLM），由美国联邦政府经营管理，是世界上最大的医学图书馆，并设有研究中心。其前身为成立于1836年的美国陆军医务部部长办公室图书馆（Library of the Surgeon General's Office）。其收藏包括：七百多万本医学和相关学科的书籍、期刊、技术报告、手稿、缩微胶卷、照片和影像，其中包括一些世界上最古老，最稀有作品。

自1879年起，国家医学图书馆出版医学索引。美国国家生物技术信息中心是其下属机构之一。

The United States National Library of Medicine (NLM), operated by the United States federal government, is the world's largest medical library.

Located in Bethesda, Maryland, the NLM is an institute within the National Institutes of Health. Its collections include more than seven million books, journals, technical reports, manuscripts, microfilms, photographs, and images on medicine and related sciences, including some of the world's oldest and rarest works.