文档夹是一种用于归类放置文档、打印纸等文档的容器类文具。一般在文具店可以购买到。通常学生和办公室需要用到文档夹。一般的文档夹只是将纸夹起来方便携带，有一些会有两个环，需要钉孔才能使用。

A file folder (US usage) (or folder in British and Australian usage) is a kind of folder that holds loose papers together for organization and protection. File folders usually consist of a sheet of heavy paper stock or other thin, but stiff, material which is folded in half, and are used to keep paper documents. Files may also contain other things like magazine, cased in music cd's, etc. sometimes mostly not used for any official use, rather used as normal storage in a home. They are often used in conjunction with a filing cabinet for storage. File folders can easily be purchased at office supply stores. Although the origin of the file folder is uncertain, many theories point to U.S. Civil War lieutenant Joseph P. Meisburger as the first to develop the concept.