Can may refer to many things:

Computer Science

• Content Addressable Network (CAN), a distributed hash table protocol

Electronics

• Controller area network, a serial communication interface

Linguistics

• A common Turkish name or surname, meaning "life". Correct pronunciation in Turkish is the same as the English name John (jŏn).
• Slang for buttocks, breasts, headphones, toilet, prison, serpent

For acronym uses, refer to CAN.

Music

• Can (band), an experimental music group from the 1970s
  • Can (album), by Can
• Can-can, a dance
• Cans, the side project of HammerFall vocalist Joacim Cans
• Cans (rapper), an underground rapper from Poughkeepsie, New York.

Nations

• Canada

Objects

• Containers
  • Beverage can, for drinks
  • Bucket/pail
  • Tin can, for food
• sea mark

Theatre

• Cans (theatre), colloquial term referring to the intercom system used by the crew of a theatre production.