不适宜工作场所或不适合工作场所（英语：Not Safe/Suitable For Work，缩写：NSFW）是一个网络用语，常指于互联网上的各种诸如电邮、视频或交互媒体（如：讨论区、博客或各种社交网络服务网站）上出现的超链接，当中某些不适合工作场合观看、可能会冒犯上司或同事的内容，多指裸露、暴力、色情或冒犯等不适宜公众场合的内容。最初这个词在博客上出现，在给出含有上述内容的超链接旁标注NSFW，用于警告观看者；后在论坛、帖子及有超链接之页面上也普遍适用NSFW。

要决定一个网站是否属于NSFW，这无可避免带主观因素，特别是学术界涉及与性学相关的研究时，往往受到挑战。当中的困难促使到帮助用户鉴别NSFW内容的在线工具的开发。

Not safe/suitable for work (NSFW) is Internet slang or shorthand. Typically, the NSFW tag is used in e-mail, videos, and on interactive discussion areas (such as Internet forums, blogs, or community websites) to mark URLs or hyperlinks which contain material such as nudity, pornography, or profanity, which the viewer may not want it to be seen accessing in a public or formal setting such as in a workplace.