A chemically strengthened glass in which a base glass composition of the chemically strengthened glass includes, in terms of molar percentage based on oxides: 55% to 75% of SiO2; 8% to 20% of Al2O3; 3% to 15% of Li2O; 1% to 5% of Na2O; 0% to 3% of K2O; 0% to 10% of MgO; 0% to 3% of Y2O3; 0% to 3% of ZrO2; 0% to 10% of CaO; 0% to 5% of SrO; 0% to 5% of ZnO; 0% to 3% of TiO2; 0% to 1% of SnO2; 0% to 5% of P2O5; and 0% to 10% of B2O3, a ratio [ZrO2]/([Y2O3]+[ZrO2]) is 0 or more and 0.7 or less, and the total content of Y2O3 and ZrO2 is 0.0% or more and 3.0% or less, and a value of 1nW represented by the Formula (1) is 10 or more and 20 or less.