It is an object of the present invention to obtain a highly pure alcohol by reducing the aldehyde concentration in the product alcohol efficiently and inexpensively.The invention relates to a process for producing an alcohol including hydrogenating an aldehyde and subjecting the resultant product to distillation/purification, wherein a total amount of oxygen introduced into the distillation/purification step is 0.0034 mol/s or less of oxygen per 1 kg/s of the product alcohol.