A dielectric ceramic composition may include a base material main ingredient and an accessory ingredient. The accessory ingredient contains one or more selected from a group consisting of oxides and carbonates of one or more elements among Bi, Li, and Cu. When the accessory ingredient contains Bi, a content of Bi may be 0.1 to 1.0 part by mole, based on 100 parts by mole of the base material main ingredient, when the accessory ingredient contains Li, a content of Li may be 0.1 to 1.0 part by mole, based on 100 parts by mole of the base material main ingredient, and when the accessory ingredient contains Cu, a content of Cu may be 0.1 to 1.0 part by mole, based on 100 parts by mole of the base material main ingredient.