Spider Demon

Spider Demon may refer to:
 * Spider Demon (Father), the father member of the Spider Family who Tanjiro mistook for a member of the Twelve Kizuki and was defeated by Giyu,
 * Spider Demon (Mother), the mother member of the Spider Family who turned Demon Slayers into puppets and was defeated by Tanjiro and Inosuke,
 * Spider Demon (Son), the older brother or son member of the Spider Family who turned Demon Slayers into spiders and was defeated by Zenitsu,
 * Spider Demon (Daughter), the older sister or daughter member of the Spider Family who captured Demon Slayers in webs and was defeated by Shinobu,
 * Rui, Lower Rank 5 of the Twelve Kizuki, as well as the youngest brother or son member and leader of the Spider Family who was defeated by Giyu OR
 * Spider Family, the article that refers to this group of Demons as a whole.