Leendert "Leen" Verbeek (born 5 March 1954) is a Dutch politician, who was serving as the King's Commissioner of Flevoland from 2008 to 2023.

A member of the Labour Party (PvdA), he previously served as Mayor of Purmerend from 2003 to 2008.

After the MULO (current-day VMBO) and a year of high school in the United States, he attended the Academy for Educational Labour in Baarn.

On 18 December 2007, it was announced that Verbeek was a candidate for Mayor of Eindhoven along with Rob van Gijzel.

A referendum was held on 23 January 2008, in which Verbeek scored 33% of the votes, but because the required number of voters was not met, the referendum was nullified and the decision was made in-house, which resulted in Van Gijzel being appointed Mayor of Eindhoven.