The title mononuclear complex, [Ni(C2H3O2)2(C3H4N2)4], has been prepared and characterized by X‐ray structure analysis. The mol­ecule contains a six‐coordinate NiII atom displaying distorted octa­hedral coordination geometry defined by the four pyrazole N atoms in the equatorial plane and two O atoms of the carboxyl­ate groups in trans‐apical positions. The Ni—N(pyrazole) distances range from 2.074 (2) to 2.097 (2) Å and the Ni—O(acetate) distances are 2.060 (2) and 2.072 (2) Å.