Look up demy in Wiktionary, the free dictionary.

Demy may refer to:

• Demy, a paper size measuring 17.5 × 22.5 in (445 × 572 mm)
• Demy (singer) (born 1991), Greek singer
  • Demy (album), 2017
• Demy (surname)
• Demy (coin)
• Demy de Vries (born 1999), Dutch fashion model
• Demy de Zeeuw (born 1983), Dutch footballer
• Demy, a recipient of a demyship, a scholarship at Magdalen College, Oxford