Notion

Notion or Notions may refer to:

Software

 * Notion (music software), a music composition and performance program
 * Notion (productivity software), a note-taking and project-management program from Notion Labs, Inc.
 * Notion (window manager), the successor to the Ion window manager

Music

 * Notion (EP), by Tash Sultana, 2016
 * "Notion" (Kings of Leon song), 2008
 * Notion (magazine), a UK music and fashion quarterly
 * Notion (music software), a music composition and performance program
 * "Notion" (Tash Sultana song), 2016
 * "Notion" (The Rare Occasions song), 2016

Other uses

 * Johnnie Notions, Shetland smallpox inoculator
 * Notion (ancient city), a Greek city-state on the west coast of Anatolia
 * Notion, ancient name of Mizen Head in Ireland
 * Notion (philosophy), a reflection in the mind of real objects and phenomena in their essential features and relations
 * Notions (sewing), small articles used in sewing and haberdashery
 * Notions (Winchester College), the Winchester slang