A coil electronic component includes a body including a support member, an internal coil supported by the support member, and an encapsulant encapsulating the support member and the internal coil, and external electrodes disposed on an external surface of the body and connected to the internal coil, wherein the internal coil includes a plurality of coil patterns, each of the plurality of coil patterns includes a lower coil pattern in contact with the support member and an upper coil pattern on the lower coil pattern, a line width and a thickness of the lower coil pattern are uniform in along the internal coil, and a line width and a thickness of the upper coil pattern are increased in a direction from the center of the internal coil to the outermost portion of the internal coil.