A dielectric ceramic composition that includes a main component expressed as 100Ba.sub.mTiO.sub.3+xCuO+aRO.sub.n+bMnO+cMgO (wherein coefficients 100, x, a, b, and c represent molar ratios; m represents the ratio of Ba to Ti (Ba/Ti); R represents at least one metal element selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; and n represents a positive number required to maintain electroneutrality and is determined by the valence number of R), wherein m, x, a, b, and c meet the following relationships: 0.990.ltoreq.m.ltoreq.1.050; 0.1.ltoreq.x.ltoreq.5.0; 9.0.ltoreq.a.ltoreq.20.0; 0.5.ltoreq.b.ltoreq.3.5; and 0