A multilayer ceramic electronic component includes a capacitance forming part in which a plurality of first and second dielectric layers are alternately disposed. The capacitance forming part includes first and second internal electrodes disposed to be spaced apart from each other. First floating electrodes are disposed to be spaced apart from the first and second internal electrodes on the plurality of first dielectric layers, and second floating electrodes are disposed on the plurality of second dielectric layers and partially overlap the first and second internal electrodes. The ceramic body further includes a protective part having a plurality of third dielectric layers on which first and second dummy electrodes are disposed and a plurality of third dummy electrodes are disposed between the first and second dummy electrodes.