A ceramic electronic component includes: a body including dielectric layers and internal electrodes; and external electrodes disposed on the body and connected to the internal electrodes, in which the dielectric layers include a plurality of dielectric crystal grains, an average number of dielectric crystal grains per unit thickness (1 μm) of the dielectric layers is 6 or more, and td is 2.0 μm or less, td being an average thickness of at least one of the dielectric layers.