Andrzej Sapkowski's The Witcher book series was almost adapted into a standalone Netflix film, but Kelly Luegenbiehl, Vice President of International Originals at Netflix, dissuaded the producers. She recalled asking them, "How can you take eight novels and just turn it into a film? There's so much material here. Through a number of conversations, the producers got really excited about the idea of using the source material for a longer-running series.In May 2017, Netflix announced the start of production on an English-language drama TV series based on the books.

The first season consisted of eight episodes and was released on Netflix in its entirety on December 20, 2019. It is based on The Last Wish and Sword of Destiny, which are collections of short stories that precede the main Witcher saga. Before the first season had been released, Netflix announced a second eight-episode season, to be released in 2021.