Some of Your Blood is a short horror novel in epistolary form by American writer Theodore Sturgeon, first published in 1961.

The novel focuses on George Smith, an American soldier, transferred to the military psychiatric clinic, where Outerbridge works.

Smith's autobiography takes up about half of the book, describing his childhood as the son of the town drunk.

Smith is imprisoned for shoplifting, and eventually joins the army as a means of escaping an uncomfortable situation with his lover, Anna.

By using information gained in his treatment to fill in the gaps in the narrative, Outerbridge deduces Smith to be a non-supernatural vampire who feels compelled to drink blood at times of emotional crisis.