There is more than one crater named Playfair:

Playfair Cricket Annual

John Playfair (1748-1819), Scottish scientist, brother of James and William

Henry Playfair (born 1983), Australian rules footballer

William Playfair (1759-1823), Scottish engineer and political economist, inventor of statistical graphics, brother of James and John

Playfair (lunar crater)

Jim Playfair (born 1964), Canadian ice hockey player and coach, brother of Larry

Sir Nigel Playfair (1874–1934), British actor and theater manager

Ian Stanley Ord Playfair (1894-1972), a general in the British Army

William Henry Playfair (1790-1857), Scottish architect (National Gallery of Scotland, Royal Scottish Academy), son of James

Larry Playfair (born 1958), Canadian ice hockey player and announcer, brother of Jim

Patrick Playfair (1889–1974), British air marshal in WWI & WWII

James Playfair (1755-1794), Scottish architect, brother of John and William, father of William Henry

Wendy Playfair, Australian actress

Andrew W. Playfair (1790–1868), Canadian politician, son of William

Judy Playfair(born 1953), Australian swimmer

Playfair Project

Lyon Playfair, 1st Baron Playfair (1818-1898), promoter of the Playfair cipher, manual symmetric encryption technique

PlayFair - software that removes Apple's FairPlay DRM file encryption

Playfair cipher - a manual encryption technique invented in 1854 by Charles Wheatstone

Lyon Playfair, 1st Baron Playfair (1818-1898), promoter of the Playfair cipher, manual symmetric encryption technique

PlayFair - software that removes Apple's FairPlay DRM file encryption

Playfair cipher - a manual encryption technique invented in 1854 by Charles Wheatstone