4D

4D or 4-D may refer to:

• The SGI IRIS 4D line of workstations from Silicon Graphics
• Class 4-D, a classification of the Selective Service System
• 4-D (psychedelic), a psychedelic drug
• 4D film, a marketing term for film
• Cinema 4D, a commercial cross platform 3D graphics application
• 4D (train) in Melbourne, Australia
• 4-Digits, a lottery in Malaysia and Singapore
• Air Sinai, IATA code
• 4th Dimension (software), a database program
• 4-D (The X-Files), an episode of The X-Files
• 4D, a photo print size for digital cameras
• Metal Fight Beyblade 4D, the third season of anime series Beyblade

See also

• D4 (disambiguation)
• Fourth dimension (disambiguation)