Surf is a web browser game by Microsoft that is included with the Microsoft Edge web browser. In the game, the player controls a surfer as they move across a body of water while also collecting power-ups and evading obstacles and the kraken.

The game is accessible by the Microsoft Edge error screen or by going to edge://surf in the Edge browser. A lite version of the game with limited features is also hosted on Microsoft's website, which is playable with any modern web browser.