Serenity: Those Left Behind is a 2005 three-issue comic book limited series published by Dark Horse Comics. It was written by Brett Matthews with Joss Whedon credited for story, illustrated by Will Conrad, and colored by Laura Martin.

Serenity: Better Days is a 2008 three-issue comic book miniseries published by Dark Horse Comics, based on the 2002 science fiction television series Firefly, and the 2005 feature film into which it was adapted, Serenity.