A multilayer ceramic electronic component includes: a ceramic body having a capacitance formation portion, and including a dielectric layer and a first internal electrode and a second internal electrode with the dielectric layer interposed therebetween, a first margin portion disposed on the surface of the capacitance formation portion, and a second margin portion disposed on the other surface of the capacitance formation portion; a first external electrode; and a second external electrode. A following formula 1 is satisfied, [formula 1]−0.1≤(Tm−Ta)/Ta, where in the formula 1, Tm is an average height of a central region of the margin portion, and Ta is an average height of an outer region of the capacitance formation portion in a second direction.