Multilayer Au–Ni–Au–Ni–Au nanowires with a controlled diameter of ~100nm were synthesized by electrochemical deposition in porous alumina templates. The length of each Ni-segment was controlled up to ~230nm, while the length of the Au segment sandwiched between two Ni segments was ~180nm. X-ray diffraction patterns and energy-dispersive X-ray spectra confirmed the formation of purely crystalline nanowires. The magnetic properties of the multilayer Au–Ni–Au–Ni–Au nanowires were investigated in the temperature range 2–300K. Room-temperature magnetic hysteresis confirmed the ferromagnetic nature of the nanowires. The plot of coercivity as a function of temperature (from 2 to 300K) followed law applicable for ferromagnetic nanostructures. The magnetization tended to increase as the temperature decreased, following the modified Bloch's law similar to ferromagnetic nanoparticles.