Lilijana Praprotnik Zupančič (born 28 September 1955), known by the pen name Lila Prap, is a Slovene illustrator and writer.

She studied architecture at the University of Ljubljana and worked as an architect before deciding to devote herself to graphic design and illustration.

Many of her books have been translated and published in France, Germany, Japan, the United States, China, and elsewhere.

In 2001, her illustrations in Little Creatures ("Male živali") and Animal Lullabies ("Živalske uspavanke") won her the Levstik Award in native Slovenia.

[2] In 2011, she won the Prešeren Foundation Award for exhibitions of her illustrations she held in Celje and Ljubljana.