The Cloud Kingdom is a kingdom in Adventure Time. It is inhabited by tall, cloud-like people, but it is unknown who the ruler is or if it has a ruler at all. Finn and Lady Rainicorn are seen going there for a party in the episode "My Two Favorite People." It also makes an appearance in the episode "Evicted!" when Finn and Jake try to find a house. This scene takes place in a house shaped cloud, apparently the home of a "mean cloud man" and his "beautiful cloud bride." In the episode "Power Animal," two Nymphs take Jake to a party in the Cloud Kingdom, where he meets the Party God. It seems that partying is a big part of Cloud Kingdom culture, similar to the Candy Kingdom.
In "Elements" the Cloud Kingdom appears to be abandoned, with its only apparent inhabitants being Ice King and Gunter.