Eiko (英子, 栄子) is a Japanese feminine given name, and may refer to:
- Eiko Ando
- Eiko Hisamura
- Eiko Ishioka
- Eiko Koike
- Eiko Koizumi
- Eiko Masuyama
- Eiko Segawa
- Eiko Shimamiya
- Eiko Tanaka
- Hosoe Eiko
- Yamazawa Eiko
- Eiko & Koma
- Eikō no Saint Andrews
- O (Eiko album)
- one of the Characters of Final Fantasy IX
Eiko is also an Estonian male given name.