The title compound, [Cu(C2H8N2)(H2O)2](C7H4FO2)2, is a mononuclear complex. The CuII atom, which lies on a crystallographic inversion centre, is coordinated by four N atoms from two ethylenediamine ligands and two O atoms from two water molecules, to form a slightly distorted octahedral geometry. All the N atoms of the ethylenediamine ligands, and all the O atoms in the water molecules and 4‐fluorobenzoate anions, contribute to the formation of a hydrogen‐bonded three‐dimensional network.