Deborah Riley (born May 16, 1973) is an Australian production designer and art director. She holds dual Australian and United Kingdom citizenship. She spent most of her previous career in film, working as a Set Director on The Matrix (1999), an Assistant Art Director on Anna and the King (1999), an Assistant Art Director on Moulin Rouge (2001), an Art Director on 21 Grams (2003).
Deborah Riley won the Outstanding Production Design For A Narrative Contemporary Or Fantasy Program (One Hour Or More) 2015 Emmy Award for Game of Thrones Season 5, specifically for the episode "High Sparrow"
Season 5 won the 2016 Art Directors Guild Award for Art Direction in a One-Hour Period or Fantasy Single-Camera Series - specifically nominated for art direction in the episodes "High Sparrow", "Unbowed, Unbent, Unbroken", and "Hardhome". The entire art direction team was nominated including Riley, and she personally accepted the award on their behalf.ref></ref>