Tanya Dziahileva (Belarusian: Таццяна (Таня) Дзягілева, Russian: Татьяна (Таня) Дягилева; born 4 June 1991), is a Belarusian model known for "elfish" and "alien" looks.

Since her first major season (spring 2006), she has walked in shows for Chanel, Dior, Hermès, Alexander McQueen, Jean Paul Gaultier, Missoni, Versace, Prada, Donna Karan, and Calvin Klein. She has appeared on the cover of Russian Vogue and has in ads for brands such as Lacoste, Hugo Boss, Michael Kors, Christian Dior, Lanvin, Yves Saint Laurent and Jean-Paul Gaultier.

She currently resides in San Francisco, California.

FRP would like to salute Tanya Dziahileva as one of the Top 50 models of the last decade.