The Twelve Kingdoms 2004 Calendar (十二国記 2004 カレンダー, Juuni Kokki 2004 Karendaa) is an item of merchandise featuring illustrations by Akihiro Yamada, the artist of the Twelve Kingdoms series. The calendar features an original cover illustration depicting Youko Nakajima and Keiki, and existing illustrations done by Yamada for the covers of the DVD collection for anime adaptation of the series.
- Product ID (ASIN): 4063579220
- Release Date: 2003-12-01
- Genre: etc
- Label: Kodansha
- Artist: Akihiro Yamada