Multilayer electronic component

A multilayer electronic component, comprising:

• a body including a dielectric layer and an internal electrode;
• and
• external electrodes disposed on the body,
• wherein the dielectric layer includes a plurality of dielectric grains having a perovskite-based composition represented by ABO3, the A includes a first element including at least one of Bi, Na, K, Sr, and Ca, and the B includes a second element including Ti,
• wherein at least one of the plurality of dielectric grains has a core-shell structure including a core portion on an internal side and a shell portion covering at least a portion of the core portion, and a content of the first element included in the core portion is twice or more than a content of the first element included in the shell portion, and
• wherein the core portion includes a first core portion on an internal side and a second core portion covering at least a portion of the first core portion, and the second core portion includes Zr.