Type X may refer to:
Typex, or Type X, British cipher machines used from 1937 Taito Type X, an arcade system board Type X submarine, a special type of German U-boat Grahame-White Type X, a 1910s British passenger-carrying biplane Type X, a category of fire-resistant drywall Type-X (unmanned ground vehicle), a robotic combat vehicle by Milrem Robotics Type X, a European copper tubing standard Type X, one of the UIC passenger coach types
See also X-Type
Type 10 (disambiguation)