《美国爱国者法案》（USA PATRIOT Act）是2001年10月26日由美国总统乔治·沃克·布什签署颁布的国会法案，正式的名称为「Uniting and Strengthening America by Providing Appropriate Tools Required to Inte****t and Obstruct Terrorism Act of 2001」，中文意义为「透过使用适当之手段来阻止或避免恐怖主义以团结并强化美国的法律」，取英文原名的首字缩写简称为「USA PATRIOT Act」，而「patriot」也是英语中「爱国者」之意。

The USA PATRIOT Act is an Act of Congress that was signed into law by President George W. Bush on October 26, 2001. With its ten-letter backronym (USA PATRIOT) expanded, the full title is "Uniting and Strengthening America by Providing Appropriate Tools Required to Inte****t and Obstruct Terrorism Act of 2001".