Web can refer to:

• Spider web: A mesh built by a spider, composed of spider silk and usually used for catching prey.
• World Wide Web: A Hypertext system that operates over the Internet, used for serving webpages and transferring files.
• WEB: A computer programming system created by Donald Knuth to implement literate programming.
• Web, John Wyndham's posthumously published novel about an attempt to establish a Utopian civilization on an island populated by spiders.
• web feeding: feeding a printing press from a roll of paper as opposed to feeding it with single sheets, hence "web offset" (offset printing).