Gaur Plain

 is a location in Xenoblade Chronicles in the lower area of that appears as a stage in both Super Smash Bros. for Nintendo 3DS, Super Smash Bros. for Wii U, and Super Smash Bros. Ultimate.

The stage takes place on two of the high ledges overlooking the Bionis' Leg, and consists of two main upper platforms with several smaller platforms floating underneath, over a body of water underneath the bottom boundary of the stage. can be seen in the background. More platforms are included on the Wii U version, including two solid platforms that feature springs, which can take the player to the top of the stage. As time passes, the stage will change from day to night and back to day, like in the game of origin.

On the Wii U version of the stage, Metal Face may appear as a stage boss during the nighttime. He attacks players by swiping his claws and firing lasers that can destroy the platforms, causing the top platform to lower, though it is restored during the daytime. When leaving, he may also attack by flying across the stage. It is possible to defeat him by attacking him enough, which destroys him and damages any opponents nearby as he explodes.

The Final Destination version of the stage is set on a flat, elevated platform.