Tamayo (珠たま世よ, Tamayo?) is a major supporting character of Demon Slayer: Kimetsu no Yaiba. She is a demon, a skilled doctor, and close ally of Tanjiro Kamado.

Tamayo is a petite young woman with long, dark brown hair, parted in the center and worn braided back into a large, low bun, which is held in place by a floral tama-kanzashi hairpin. She has large, gentle eyes that initially do not possess pupils, only a haze of lavender that fades to dark purple the higher it goes, and notably red lips