Habbo , formerly Habbo Hotel , is a social networking website owned and operated by Sulake Corporation. Aimed at teenagers, Habbo features chat rooms rendered by isometric projection in the form of virtual hotel rooms. User pages on the website are linked to these rooms and allow users to share content and create groups with discussion forums. Each user, called a Habbo, has a customizable avatar to represent him or herself. The service gains revenue from credits bought with real-life currency. Credits are used to buy products such as virtual furniture for the virtual hotel rooms and stickers for user pages.

The service began in 2000 and has expanded to include 32 online communities (or "hotels"). As of June 2008 over 100 million avatars have been registered, there are an average 8 million unique visitors monthly, and 75,000 avatars are being created every day.