The House of Set was a regional House of the Sith Order of Decreto during the reigns of Konopka, Hekas-ni and Setal-ni.
Ruled by a minor Sith Lord up until 3,963 BBY, command of the House passed onto Appuchi following the House of Set's defeat by the House of Mythos during the battle of Setesh. Following the battle the House of Set joined the House of Mythos.
Sith Lords of the House of Set were traditionally trained in Ataru.