The name Eiko has roots in Japanese and is generally associated with the meaning prosperous child or splendid child depending on kanji. It is used as a personal name in modern naming contexts and may carry cultural, religious, literary, historical, occupational, or nature-based associations depending on its background. Because Eiko is a documented name form, its meaning can be explained through its established linguistic root rather than through guesswork. As a name choice, Eiko often feels distinctive while still carrying a recognizable historical or cultural connection.

The root form of Eiko is Eiko — meaning "Prosperous child, child of splendor.".

Eiko remains a beloved choice, ranking #16 in the US. Timeless appeal across cultures and generations.