Chiho Saito (born June 29, 1967) is a mangaka, notable mostly for the manga Revolutionary Girl Utena. She is part of the Be-Papas manga artist collective. Her debut work was "Ken to Madomoaseru" (The Sword and the Mademoiselle).

Info from Wikipedia

Here's a list of her famous works, all serialized on Flower Comics:

Enbukyoku wa shiroi dress de (Waltz in a White Dress), 4 volumes
Magnolia Waltz, 3 volumes
Lilac Nocturne, 1 volume
Kanon, 6 volumes
Kakan no Madonna (Flower Crown Madonna), 7 volumes
Anastasia Club,
First Girl,
Basilis no musume (Daughter of Basilis), 4 volumes
Koi Monogatari (Love Story), 14 volumes
Mou Hitori no Marionette (Another Marionette), 8 volumes
Honoka ni Purple (A Hint of Purple), 3 volumes
Lady Masquerade, 2 volumes
Bronze no tenshi (Bronze angel)

With Ikuhara Kunihiko, leader of the Be-Papas:

Shoujo Kakumei Utena (Revolutionary Girl Utena), 5 volumes
Gekijouban Shoujo kakumei Utena (Revolutionary Girl Utena Theatrical Edition), 1 volume
S & M no Sekai (The world of S & M), 2 volumes