The Guild is an American comedy web series created and written by Felicia Day, who also stars as Cyd Sherman. It premiered on YouTube on July 27, 2007. Seasons two through five webisodes premiered on Microsoft's Xbox Live Marketplace, Zune Marketplace, and MSN Video. The webisodes were later made available on the official Guild website, YouTube, and iTunes. According to Day, Microsoft's business model changed after season five; Day wanted to keep ownership, so the episode premieres moved to Day's YouTube channel Geek & Sundry. The webisodes are also available via DVD and streaming on Hulu and Netflix.

The show revolves around the lives of a gamers' online guild, The Knights of Good, who play countless hours of a fantasy MMORPG video game entitled The Game. The story focuses on Codex, the guild's Priestess, who attempts to lead a normal life after one of her guild-mates, Warlock Zaboo, shows up on her doorstep.

Joss Whedon credits The Guild as one of the inspirations for Dr. Horrible's Sing-Along Blog, which also starred Felicia Day.

The sixth season premiered on Geek & Sundry on October 2, 2012.

In a phone interview after the end of the sixth season, Felicia Day confirmed that The Guild webseries is complete.