The Tapani language represented the specific dialect utilized within the Tapani sector, found within the Colonies area of the galactic disk. Due to some Tapani nobles becoming adherents to the Sith, a group of strong darksiders based in the Stygian Caldera, their language was among those spoken by Humans who were governed by the Sith. Instances of the Tapani language being verbally used included the naming conventions for days and months found in the Tapani calendar.