A wire rod comprising a chemical composition consisting of, in % by mass, C: from 0.60 to 1.15%, Si: from 0.01 to 1.80%, Mn: from 0.20 to 0.90%, P: 0.015% or less, S: 0.015% or less, Al: from 0.005 to 0.080%, N: from 0.0015 to 0.0060%, Cu: from 0.10 to 0.65%, Ni: from 0.05 to less than 0.65%, Cr: from 0 to 0.30%, Mo: from 0 to 0.30%, Ti: from 0 to 0.100%, Nb: from 0 to 0.100%, V: from 0 to 0.20%, Sn: from 0 to 0.30%, B: from 0 to 0.0050%, Ca: from 0 to 0.0050%, Mg: from 0 to 0.0050%, Zr: from 0 to 0.100%, REM: from 0 to 0.0200%; and a balance being Fe and impurities, wherein: the wire rod satisfies the following to: Cu / Ni > 1.00; 1.70 ≤ Y 1 ≤ 4.50, Y 1 = 3 × Cr + 5 × Mn + Cu + Ni; and Y 2 < 1.81, Y 2 = C + Si / 10 + A; with the contents of elements of C, Si, Mn, Cr, Cu, Ni, N, and Ti contained in the wire rod in % by mass being represented by, [Si], [Mn], [Cr], [Cu], [Ni],, and [Ti], respectively, and A satisfying A = a if a value of a = 350 × ( - 0.29 × [Ti]) satisfies a ≥ 0, and A = 0 if the value satisfies a < 0; a metal structure of the wire rod contains a pearlite structure having an area ratio of 90% or more in a cross section parallel to a longitudinal direction including a central axis of the wire rod; and the wire rod satisfies the following: Hv simax − Hv siave ≤ 50 with the Vickers hardness measured at a position of a depth of 50 μm from a surface of the wire rod in the cross section for each of eight samples si (i is an integer from 1 to 8) collected at arbitrary equal intervals in the longitudinal direction of the wire rod being Hv si, and an average value and maximum value of Hv si being respectively Hv siave and Hv simax,wherein the Vickers hardness is measured as defined in the description. C: from 0.60 to 1.15%, Si: from 0.01 to 1.80%, Mn: from 0.20 to 0.90%, P: 0.015% or less, S: 0.015% or less, Al: from 0.005 to 0.080%, N: from 0.0015 to 0.0060%, Cu: from 0.10 to 0.65%, Ni: from 0.05 to less than 0.65%, Cr: from 0 to 0.30%, Mo: from 0 to 0.30%, Ti: from 0 to 0.100%, Nb: from 0 to 0.100%, V: from 0 to 0.20%, Sn: from 0 to 0.30%, B: from 0 to 0.0050%, Ca: from 0 to 0.0050%, Mg: from 0 to 0.0050%, Zr: from 0 to 0.100%, REM: from 0 to 0.0200%; and a balance being Fe and impurities, wherein: the wire rod satisfies the following to: Cu / Ni > 1.00; 1.70 ≤ Y 1 ≤ 4.50, Y 1 = 3 × Cr + 5 × Mn + Cu + Ni; and Y 2 < 1.81, Y 2 = C + Si / 10 + A; with the contents of elements of C, Si, Mn, Cr, Cu, Ni, N, and Ti contained in the wire rod in % by mass being represented by, [Si], [Mn], [Cr], [Cu], [Ni],, and [Ti], respectively, and A satisfying A = a if a value of a = 350 × ( - 0.29 × [Ti]) satisfies a ≥ 0, and A = 0 if the value satisfies a < 0; a metal structure of the wire rod contains a pearlite structure having an area ratio of 90% or more in a cross section parallel to a longitudinal direction including a central axis of the wire rod; and the wire rod satisfies the following: Hv simax − Hv siave ≤ 50 with the Vickers hardness measured at a position of a depth of 50 μm from a surface of the wire rod in the cross section for each of eight samples si (i is an integer from 1 to 8) collected at arbitrary equal intervals in the longitudinal direction of the wire rod being Hv si, and an average value and maximum value of Hv si being respectively Hv siave and Hv simax,wherein the Vickers hardness is measured as defined in the description.