Six of Crows is a fantasy novel written by the Israeli-American author Leigh Bardugo, published by Henry Holt and Co. in 2015. The story is set in the city of Ketterdam, loosely inspired by Dutch Republic-era Amsterdam, and follows a thieving crew.

The narrative unfolds from the third-person viewpoints of seven different characters. Kaz Brekker, a criminal prodigy, is offered a chance at a deadly heist that could make him rich beyond his wildest dreams. However, he cannot pull it off alone and must rely on:

• A convict with a thirst for revenge
• A sharpshooter who cannot walk away from a wager
• A runaway with a privileged past
• A spy known as the Wraith
• A Heartrender using her magic to survive the slums
• A thief with a gift for unlikely escapes

Six dangerous outcasts. One impossible heist. Kaz's crew is the only thing that might stand between the world and destruction—if they don't kill each other first.

Six of Crows is the first book in the Six of Crows Duology and is part of the larger Grishaverse.