Provided are an amine compound represented by the following formula (1), which has a low active hydrogen equivalent weight and thus is capable of providing a cured product having good properties because the amine compound has sufficient curability even though the amount of amine compound blended in an epoxy resin composition is small when the amine compound is used as an epoxy resin curing agent, and an amine composition and an epoxy resin curing agent, which contain the compound: wherein A is a 1,2-phenylene group, a 1,3-phenylene group, or a 1,4-phenylene group.