Animal Crossing: Wild World is a 2005 social simulation video game developed and published by Nintendo for the Nintendo DS handheld game console. It was released in Japan in November 2005, in North America and Australia in December 2005, and in Europe in March 2006. It is the second installment in the Animal Crossing series, and the sequel to Animal Crossing on the GameCube.

Wild World focuses on living in a remote village populated with anthropomorphic animals, where the player character is encouraged to perform any number of tasks, such as collecting and planting. Like all Animal Crossing titles, the game is synced to the console's clock and calendar, allowing the game to be played in real-time, which affects the occurrence of in-game events based on the current time of day or season. Wild World utilized Nintendo Wi-Fi Connection, which allowed players to travel and visit the villages of other players via online play, until the service was shut down in May 2014.

The game received positive reviews upon release, garnering aggregate scores of 86/100 on Metacritic and GameRankings. Wild World is the ninth best-selling game on the Nintendo DS with 11.75 million copies sold worldwide as of March 31, 2016. It was additionally re-released on the Wii U Virtual Console in October 2016.