Someday's Dreamers (Japanese: 魔法遣いに大切なこと, Hepburn: Mahōtsukai ni Taisetsu na Koto, lit. "Things That Are Precious to a Mage") is a Japanese manga series written by Norie Yamada and illustrated by Kumichi Yoshizuki. It was serialized in Fujimi Shobo's Comic Dragon magazine from May 2002 to January 2003 and was later collected in two bound volumes. In 2006, Tokyopop released the manga in the United States under the name Someday's Dreamers.

Someday's Dreamers was also adapted into an anime television series that was animated by J.C.Staff under the direction of Masami Shimoda. It is loosely based on the storyline of the first manga series, with new characters added to the story. It ran for a total of 12 episodes on TV Asahi and was later licensed by Geneon Entertainment USA. After the closure of Geneon USA, the series was relicensed by Sentai Filmworks.Another story set in the same universe, Someday's Dreamers: Spellbound (魔法遣いに大切なこと 太陽と風の坂道, Mahōtsukai ni Taisetsu na Koto: Taiyō to Kaze no Sakamichi), written and drawn by the same author and illustrator, was serialized in Kadokawa Shoten's Comic Dragon Age. It ran from December 2003 to February 2006 and was later released in five bound volumes. In 2006, Tokyopop released the manga in the United States.

In 2007, Norie Yamada and Kumichi Yoshizuki began work on a third title in the Someday's Dreamers universe, titled Summer Skies (魔法遣いに大切なこと 〜夏のソラ〜, Mahōtsukai ni Taisetsu na Koto: Natsu no Sora). It was serialized in Kadokawa Shoten's Monthly Shōnen Ace and began its run in the April issue, released on February 26, 2008. Summer Skies was scheduled to have a live action movie adaptation released on December 20, 2008, though it was originally scheduled for a summer 2008 premiere. The story was also adapted into an anime television series, following the new main character, Sora. The series is directed by Osamu Kobayashi and is animated by Hal Film Maker. It aired on TV Asahi from July 2, 2008 to September 24, 2008.