A ceramic electronic component includes a body including dielectric layers and a plurality of internal electrodes and an external electrode including a connection portion and a band portion. The external electrode includes an electrode layer, a conductive resin layer, a nickel plating layer, and a tin plating layer. When an electrode layer thickness, a conductive resin layer thickness, a nickel plating layer thickness, a tin plating layer thickness of the band portion are defined as t3, t4, and t5, respectively, t5 is greater than or equal to 0.5 micrometer and less than 7 micrometer, and t5/(t3+t4) satisfies 1≤t5/(t3+t4)*100