Mario Party 6 is the sixth installment in the Mario Party series of board game-style party video games by Nintendo and is the third game in the series made for the GameCube.

In Mario Party 6, up to 4 players take turns moving on board game-style stages, often playing multiplayer minigames to earn coins and stars. The object of the game is to amass the most coins and stars before completing a set number of turns. This is the first game to take out the coin bonus star, replacing it with the Orb star, which is awarded to the player that used the most Orbs. On multiplayer boards, the sun will periodically set or rise (every three turns), producing different effects. Changes include spaces moving, different characters appearing, and changes to minigames. This is reflected in two new characters, Brighton and Twila, representing the sun and moon respectively.