Eriko is a Japanese feminine given name that combines two kanji characters: "hikari" (光), meaning "light," and "ko" (子), meaning "child." This name emphasizes the radiance of childhood innocence and purity, often signifying hope for the future. It gained popularity in Japan during the late 20th century but has since become less common.
Eriko was quite popular as a baby girl name during the late seventies to mid-nineties, with peaks in popularity around 1985-1986 and again in 1990. However, it seems its usage declined thereafter, with fewer than 10 births recorded annually from 1994 onwards.