A multilayer ceramic electronic component includes: a ceramic body including a capacitance forming part in which first and second dielectric layers are alternately disposed; and external electrodes disposed on both end surfaces of the ceramic body. The capacitance forming part includes first and second internal electrodes, first floating electrodes, and second floating electrodes. The ceramic body further includes a protective part having third dielectric layers on which first and second dummy electrodes exposed to the end surfaces of the ceramic body are disposed and a third dummy electrode is disposed between the first and second dummy electrodes.