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A dielectric ceramic composition comprises 100 parts by weight of a primary constituent, about 0.1 to 25 parts by weight of a first secondary constituent comprising a SiO2-based glass not containing lead oxide, and about 20 parts by weight or less of a second secondary constituent comprising manganese oxide (MnO). The primary constituent is represented by the formula x(BaalphaCabetaSrgamma)O-y[(TiO2)1-m(ZrO2)m]-zRe2O3 wherein x+y+z=100 on a molar basis, alpha+beta+gamma=1, 0<=beta+gamma<=0.8, 0
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