A disk or disc may be:

• A flying disc or, more specifically, a Frisbee, a disk-shaped toy
• The DISC assessment, a psychological test
• Intervertebral disc, in the spines of vertebrates
• Disk (mathematics)
• An accretion disc, in astrophysics
• DİSK, the Confederation of Progressive Trade Unions of Turkey
• A Parking Disc Machine
• DISCs - "Domestic International Sales Corporations' under US law

Recording media

• Gramophone record (commonly "phonograph record" in U.S. English)
• Hard disk, aka "hard drive"
• Floppy disk
• Compact disc
• Digital Versatile Disc

See also

• DiSC
• Personal Profile System

• Nipkow disk
• Discus (fish)
• Intervertebral disc
• Discus
• Disco
• Disc brake

In astrophysics:

• Accretion disc
• Protoplanetary disk
• Scattered disc

Data storage:

• Disk storage
• Floppy disk
• Hard disk
• RAM disk
• Blu-ray Disc
• Compact disc
• DVD
• HD-DVD
• EVD
• Laserdisc
• MiniDisc
• Disk (or disc) has also been misnomerously used to refer to tape drives and flash memory cards for both music and computer data.

In mathematics:

• Disk (mathematics)
• Euler's disk
• Unit disk

Other misnomerous terms for audio storage and computer data

• Tape

Misnomers

Disk | Disk | Disko | Disque | דיסק | ディスク | Disk