The present invention provides a dielectric ceramic obtainable from a composition consisting of: barium titanate containing 0.02% by weight or less of alkali metal oxides, at least one kind of the compound selected from europium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide and ytterbium oxide, barium zirconate and manganese oxide, an essential component represented by the following composition formula: (BaO) m TiO 2 + αR 2 O 3 + βBaZrO 3 + γMnO, wherein R 2 O 3 represents at least one kind of compound selected from Eu 2 O 3 , Gd 2 O 3 , Tb 2 O 3 , Dy 2 O 3 , Ho 2 O 3 , Er 2 O 3 , Tm 2 O 3 and Yb 2 O 3 , and α, β and γ representing mole ratios are in the range of 0.001 ≤ α ≤ 0.06, 0.005 ≤ β ≤ 0.06 and 0.001