A multilayer ceramic electronic component includes an element body. The element body includes a capacitance region and an exterior region. The capacitance region is formed by alternately laminating inner dielectric layers and internal electrode layers having different polarities. The exterior region is laminated outside the capacitance region in a laminating direction and formed by outer dielectric layers. The internal electrode layers contain a main component of copper and/or silver. An exterior void ratio is larger than a capacitance void ratio, in which the exterior void ratio is an area ratio of voids contained in the exterior region, and the capacitance void ratio is an area ratio of voids contained in the capacitance region.