Linux标准规范（英语：Linux Standard Base，缩写为 LSB）是一个在Linux基金会结构下对Linux发行版的联合项目，其目标使Linux操作系统符合软件系统架构，或文档系统架构标准的规范及标准。LSB基于POSIX，统一UNIX规范及其他开放标准，在某些领域扩展它们。

The LSB compliance may be certified for a product by a certification procedure.

LSB规范的例子:标准函式库,一系列的命令和工具以扩大POSIX的标准,文档系统架构的layout,运行级别,打印系统,Spooling如CUPS及几个X Window系统的扩展。

The Linux Standard Base (LSB) is a joint project by several Linux distributions under the organizational structure of the Linux Foundation to standardize the software system structure, including the filesystem hierarchy used in the Linux operating system. The LSB is based on the POSIX specification, the Single UNIX Specification (SUS), and several other open standards, but extends them in certain areas.