The corona discharge ozone generator is a portable ozone generator designed to produce a sufficient amount of ozone to kill, inactivate or suppress noxious odors, mold, mildew, bacteria, fungus, pathogens, small pests and the like. The generator includes a housing enclosing a ceramic dielectric plate having at least two spaced electrodes. A module for generating a high voltage and low current is also enclosed in the housing. The module applies a high voltage and low current across the electrodes to produce a corona discharge between the surfaces of the electrodes. The discharge causes ozone to be produced in ambient air. The ceramic plate enhances the ozone production. A fan is mounted on or in the housing to disperse the ozone as needed. Ozone is not stored within the device. The module can be powered by AC, DC, solar or other conventional sources. An on/off switch is mounted on the housing for activating and deactivating the module.