A No-ship is a fictional type of spacecraft from the Dune science fiction series by Frank Herbert.

Essentially, a No-ship is a type of No-chamber that can be used for interstellar transportation. Like a No-chamber, anything inside a No-ship is hidden from prescient vision and other methods of detection although it is indicated that in standby mode, it can be seen with the naked eye. A No-ship has much more greater technological capability than a No-chamber, such as performing the functions of a Guild Navigator. Specifically, a No-ship's computer is capable of enough limited prescience that it can successfully navigate its way through a fold in the fabric of the space-time continuum.

No-ships can also be gigantic. In the last book in the series, Chapterhouse: Dune, two characters are confined to a No-ship for their own protection from prescient spying. They are capable of living within it for years without suffering many of the undue effects one would associate with such confinement, implying a very large and luxurious living space. More strikingly, a No-ship can be used to transport an adult Sandworm, with enough sand for it to survive in for the duration of the trip.

No-ships represent the fading of both the restrictions on computing devices in the Dune universe and the power of the Spacing Guild, whose navigators were previously the only beings capable of interstellar navigation in their Heighliner spacecraft.