Willian Santiago (1991 – 4 May 2021) was a Brazilian illustrator, graphic designer, and professor, known internationally for his works full of vibrant colors and digital reproduction of brushstrokes and natural textures, having illustrated several books, in Brazil and abroad, in addition to magazines and advertising campaigns of famous brands.[1]

In 2017, Santiago won the Prêmio Jabuti, in the digital children's category, for the illustrations of the first children's book by author Luis Fernando Veríssimo, called O Sétimo Gato, which was part of the Kidsbook Itaú Criança Collection.