电脑软件皮肤或界面皮肤，是指一款计算机软件或网站用户界面的外观和样式。软件皮肤是软件个性化的象征之一。

人机交互和图形用户界面软件（如Windows操作系统）的诞生，是软件皮肤的源头。其更改桌面图片、界面字体、颜色的功能，就是软件个性化的表现，也引领了未来软件操作界面个性化的发展。随着网络的发展，软件发展的个性化也日渐明显，软件皮肤的出现和发展便是顺理成章。

In computing, a skin (also known as visual styles in Windows XP) is a custom graphical appearance preset package achieved by the use of a graphical user interface (GUI) that can be applied to specific computer software, operating system, and websites to suit the purpose, topic, or tastes of different users. As such, a skin can completely change the look and feel and navigation interface of a piece of application software or operating system.