PROBLEM TO BE SOLVED: To provide a bactericidal composition exhibiting bactericidal effects on various microorganism existing in living environment such as a bathroom.SOLUTION: There is provided the bactericidal composition containing: aromatic alcohol such as benzyl alcohol (a component), glycol ether ((b1 component) represented by RO-(CH-O)-H, where R represents an aliphatic hydrocarbon group having 3 to 8 carbon atoms or the like and n1 represents an integer of 1 to 8； glycol ether (b2 component) represented by RO-(CH-CH(CH)-O)-H, where R represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms and n2 represents an integer of 1 to 8； water (c component)； and a surfactant (d component). In the bactericidal composition, the total content of the (a) component and the (b) component which is selected from the (b1) and (b2) components is 1.6 mass% or more, the mass ratio of the total content of the (a) component and the (b) component and the content of the (d) component, (d)/[(a)+(b)] is 0.8 or less, and the total content of the (a) component, the (b) component and the (c) component is 80 mass% or more.【課題】浴室等の生活環境に存在する様々な微生物に対して優れた殺菌効果を発揮できる殺微生物用組成物を提供する。【解決手段】ベンジルアルコール等の芳香族アルコール(ａ成分)、ＲＯ－（Ｃ2Ｈ4－Ｏ）n1－Ｈ（式中、Ｒは、炭素数３～８の脂肪族炭化水素基等を表し、ｎ１は１～８の整数を表す）で示されるグリコールエーテル(ｂ１成分)、ＲＯ－（ＣＨ2－ＣＨ（ＣＨ3）－Ｏ）n2－Ｈ（式中、Ｒは炭素数１～８の脂肪族炭化水素基等を表し、ｎ２は１～８の整数を表す）で示されるグリコールエーテル(ｂ２成分)、水(ｃ成分)、及び界面活性剤(ｄ成分)を含有し、（ａ）成分と（ｂ）成分の合計含有量が１．６質量％以上であり、（ａ）成分と（ｂ）成分の合計含有量と（ｄ）成分の含有量の質量比が、（ｄ）／［（ａ）＋（ｂ）］で、０．８以下であり、（ａ）成分、（ｂ）成分及び（ｃ）成分の合計含有量が８０質量％以上である、殺微生物用組成物。【選択図】なし
