Katherine Arden Burdine (born 1987), best known by her pen name Katherine Arden, is an American novelist. Known primarily for her Winternight trilogy of fantasy novels, which are set in medieval Russia and have garnered nominations for Hugo and Locus Awards, she is also the author of the Small Spaces series of horror novels for middle grade children. The first in the latter series, Small Spaces, won the Vermont Golden Dome Book Award in 2020.