Rust Blaster (stylized as RustBlaster) is a Japanese manga series written and illustrated by Yana Toboso.

It was serialized in Square Enix's Monthly GFantasy from November 2005 to April 2006 and published in a single volume.

[2] Jason Thompson of Otaku USA criticized the series, stating it "works best as a so-bad-it's-good comedy".

[7] Gregory Smith of The Fandom Post offered a different perspective, recommended the series to new shōnen manga fans.

[1] Christel Scheja of Splash Comics also praised the series, stating that while it was not as good as the author's next work, Black Butler, it was still "fun to read".