400m

400m may refer to:
 * 400m, an Event in the Wii version of Mario & Sonic at the Olympic Games.
 * 400m, an Event in the Nintendo DS version of Mario & Sonic at the Olympic Games.
 * 4x100m Relay, another Event in the Mario & Sonic series.
 * 400m Hurdles, another Event in Mario & Sonic at the Olympic Games.
 * 4x100m Freestyle, another Event in the Wii version of Mario & Sonic at the Olympic Games.