Black Book (Dutch: Zwartboek) is a 2006 war drama thriller film co-written and directed by Paul Verhoeven, and starring Carice van Houten, Sebastian Koch, Thom Hoffman and Halina Reijn. The film, credited as based on several true events and characters, is about a young Jewish woman in the Netherlands who becomes a spy for the resistance during World War II after tragedy befalls her in an encounter with the Nazis. The film had its world premiere on 1 September 2006 at the Venice Film Festival and its public release on 14 September 2006 in the Netherlands. It is the first film that Verhoeven made in his native Netherlands since The Fourth Man, made in 1983 before he moved to the United States.

The press in the Netherlands was positive; with three Golden Calves, Black Book won the most awards at the Netherlands Film Festival in 2006. The international press responded positively, as well, especially to the performance of Van Houten. It was nominated for the BAFTA Award for Best Film Not in the English Language, and was the Dutch submission for the Academy Award for Best Foreign Language Film in 2007, making the January shortlist.

It was three times more expensive than any Dutch film ever made, and also the Netherlands' most commercially successful, with the country's highest box-office gross of 2006. In 2008, the Dutch public voted it the best Dutch film ever.