Wie is de Mol? (English: Who is the Mole?) is a Dutch adventure reality competition show. It is based on the Belgian show De Mol, the original version of the format created in 1998 by Woestijnvis and broadcast on VRT.
Wie is de Mol? is a reality television competition involving a group of candidates. These candidates travel to a foreign country where they have to complete assignments to earn money to fill the prize pot. However, one of the participants is selected as the Mole. The Mole's goal is to secretly sabotage the assignments and keep the total amount of money in the pot as low as possible. The other candidates do not know who the Mole is, and attempt to figure out the Mole's identity throughout the season.
At the end of every episode the candidates take a multiple choice test about the Mole's identity. The test contains 20 questions (40 questions in the final test) about the Mole's activities since the previous test and personal questions about the Mole (for example, "On which team was the mole during the castle-assignment" or "Has the mole been baptized?"). With the help of 'jokers', which they can earn during the assignments, the contestants can turn incorrect test answers into correct answers.
The person with the fewest correct answers is then eliminated from the show. In most series this process continues until only two contestants and the Mole remain. The winner is the person with the most correct answers in the final test and they get all of the money earned for the prize pot throughout the season.
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The first four seasons of Wie is de Mol? had ordinary people as participants. After the break in 2004, all participants in the following seasons were Dutch celebrities.
The 7th season in 2007 was the first season to have four finalists, with two runner-ups.
The 18th season in 2018 was the first to be located in six countries: Armenia, Azerbaijan, Kazakhstan, Russia, Ukraine, and Georgia.
In September 2020, a special jubilee season aired in celebration of twenty seasons of Wie is de Mol?.
In February 2025, a new anniversary season was announced in celebration of twenty-five seasons of Wie is de Mol? to air later in the year.
The 26th season started airing on 28 February 2026, unlike the usual first Saturday of January. This was done to make room on NPO 1 for the 2026 Winter Olympics.
Ever since 2015, the finale (where the Mole and their sabotaging activity is revealed) is broadcast live, with an audience. Over the years, multiple locations have hosted the live finale.