Roode Steen (Dutch pronunciation: [ˈroːdə steːn]; lit. 'Red Stone'), also known as Kaasmarkt (Dutch pronunciation: [ˈkaːsmɑr(ə)kt]; lit. 'Cheese Market'), is a square and a road junction in the city center of Hoorn, Netherlands.

The Westfries Museum and the weigh house (Waag) are both located on the Roode Steen. A statue of Jan Pieterszoon Coen, made by Ferdinand Leenhoff, was placed on the square in 1893.

Roode Steen is the meeting point of four streets and two alleys. Clockwise from the northwest, these are:

52°38′22″N 5°3′33″E / 52.63944°N 5.05917°E / 52.63944; 5.05917