343

343 (73) may refer to the following:


 * 343 Guilty Spark - The Monitor of Installation 04.
 * 343 Guilty Spark (level) - The level in Halo: Combat Evolved.
 * 343 Industries - A Microsoft Game Studios internal-build team established to create new properties for the Halo series.
 * 343 Sparkast - Official podcast of 343 Industries.