Disclosed is an aqueous emulsion containing an olefin copolymer, which has a structural unit derived from an a-olefin and/or ethylene and a structural unit derived from a vinyl compound having a substituent, an emulsifying agent, and a compound having 1-13 atoms. The compound having 1-13 atoms has either one or both of a hydroxy group and an amino group, while having at least two hydrogen atoms each derived from a hydroxyl group or an amino group in a molecule.