Saeko Chiba (千葉 紗子, Chiba Saeko?) is a prolific seiyū (voice actress) and singer who was born on August 26, 1977 in Hachinohe, Aomori, Japan, and grew up in Tokyo, Japan. She is contracted to Space Craft Produce, a branch of Space Craft Group.
Saeko has pursued a singing career, with Yuki Kajiura (who wrote music for some of the Nanshō stage shows) writing and producing almost all her material. Her first single was Koi no Kiseki, the theme song for the PlayStation game Meguri Aishite. She has since released nine singles and two albums, along with various character song and drama CDs.
Saeko was also part of the group tiaraway with fellow Nansho member Yuuka Nanri. Originally recording and performing as Saeko Chiba & Yuuka Nanri for the game/anime Memories Off 2nd, the duo released three singles and an album before breaking up on 6 March 2005.