The Nac Mac Feegle (also sometimes known as Pictsies, Wee Free Men, and the Little Men) are a type of fairy folk that appear in Terry Pratchett's Discworld novels Carpe Jugulum, The Wee Free Men, A Hat Full of Sky, Wintersmith, I Shall Wear Midnight, Snuff, and The Shepherd's Crown. Aside from being six inches tall, they just about invert the Victorian concept of mystical and refined fairies, and hark back to the fairies of folklore, who were generally seen as occasionally helpful thieves and pests.