A ceramic electronic device includes: a ceramic main body having a parallelepiped shape in which edges of first internal electrode layers are led out to a first edge face and edges of second internal electrode layer are led out to a second edge face facing the first edge face; and external electrodes respectively formed on the first edge face and the second edge face and extending to at least one side face of the ceramic main body, wherein a distance in a length direction between first conductive layers of the respective external electrodes on the at least one side face is shorter between locations corresponding to corner portions of the ceramic main body, respectively, than between center portions of the first conductive layers of the respective external electrodes in a width direction orthogonal to the length direction on the at least one side face.