playfair

{{wiktionary}}

Playfair may refer to:

• Playfair (surname)
• Playfair (lunar crater)
• Playfair (Martian crater)
• PlayFair, software that removes Apple's FairPlay DRM file encryption, now succeeded by Hymn

• Playfair Project
• TS Playfair, a Canadian sail training vessel
• Playfair's axiom named after John Playfair
• Playfair cipher, a manual encryption technique invented in 1854 by Charles Wheatstone
• Playfair Cricket Annual
• Playfair Race Course
• Lyon Playfair Library, now called the Abdus Salam Library, at Imperial College London
• Play Fair!, an HIV/AIDS brochure