A conductive ink composition includes about 15% to about 50% by weight of copper nanoparticles, about 40% to about 80% by weight of a non-aqueous solvent mixture, about 0.01% to about 5% by weight of a dispersion agent and about 1% to about 20% by weight of a wetting agent. A conductive pattern may be formed with use of the conductive ink composition and an inkjet printer.