Red as Blood, or Tales from the Sisters Grimmer is a short story collection of dark fantasy retellings of popular fairytales by British author Tanith Lee.

Contrary to what the title may suggest, it not only includes retellings of fairytales by the Brothers Grimm, but also by Charles Perrault, Gabrielle-Suzanne Barbot de Villeneuve or Alexander Afanasyev.

The title story was nominated for a Nebula Award.

Red as Blood, or Tales from the Sisters Grimmer contains the following tales: In 2014, the book was released as an expanded edition including a new story, "The Waters of Sorrow", which had been previously published in 2011 in Weird Tales.

Dave Langford reviewed Red as Blood for White Dwarf #48, and stated that "Fun: but these inversions can become repetitious, while Lee's SF 'Beauty and the Beast' founders in a morass of soggy pseudoscience.