Thomas Olde Heuvelt (born 1983) is a Dutch novelist who works in the realms of the fantastic. His critically acclaimed horror novel HEX (2016) became a worldwide bestseller with translations in twenty-six countries, including the US, China, Japan and Brazil, and was called “totally, brilliantly original” by Stephen King. Screenwriter Gary Dauberman (It, Annabelle) is currently working on the first season of a TV series based on HEX. Olde Heuvelt’s short fiction has been nominated for several Hugo and World Fantasy Awards. In 2015, his story The Day the World Turned Upside Down became the first ever translated work to win a Hugo Award.

Olde Heuvelt is currently finishing his new novel.