Dragsholm Castle (Danish: Dragsholm Slot) is a historic building in Zealand, Denmark.

For about 800 years there has been a building on the islet by the "drag". From the original palace over the medieval castle to the current baroque style, Dragsholm Castle has had an influence on and been influenced by changing times and the surrounding community. Today, Dragsholm Castle has restaurant and hotel facilities.

Prior to the reclamation of the Lammefjord, Odsherred was connected to the rest of Zealand by a narrow strip of land, known as a "draugh" or "drag", located east of Dragsholm where the mill, Dragsmølle, lies today. The Vikings could drag their ships across the strip of land and then sail through to Roskilde, avoiding the dangerous waters north of Zealand. The islet on which Dragsholm Castle was built is surrounded by lakes and meadows just south of the terminal moraine, which ends at Vejrhøj (123 m) to the north. Consequently, Dragsholm means the islet by the "drag".

Today, the baroque style of the castle remains intact, but the interior of the Castle has been subject to restorations and modernisations over the years. The most recent major restoration took place after the first world war, where the Baron aimed for a Late Romantic Style, which still prevails in the salons and ballrooms.