YP may refer to:
- Yellow Pages (computing)
- Yard patrol boat (US Navy hull classification symbol), a type of training craft
- Young Professional, also known as a Yuppie
- Yepp player names (such as YP-55)
- Videoplatform Ypat
- Yellow Pikmin, a version of a Pikmin that appears in Pikmin, Pikmin 2, and Super Smash Bros. Brawl
- Yellow Pig, the mascot of the Hampshire College Summer Studies in Mathematics
- Young Prayer, the second studio album by experimental musician Panda Bear
- "You Pies!", an abbreviation of the Notts County F.C. motto "Come On You Pies"
- YouPorn, a website for pornography.