Di sma undar jordi (Gutnish,Swedish:de små under jorden,lit. 'the small (ones) underground'), or simplydi sma, are legendaryvættir-like creatures found infolklore from the island ofGotland, Sweden. It is really the regional variation of the broader folklore of the "hidden people" (mainlandSwedish:underjordiska, "subterraneans").Di sma are said to take care of farms and the people and animals that live there, as long as one does not anger them. The most classical example of doing so is to mindlessly scald them when disposing hot water outdoors. According to Gotlandic tales,di sma can only be seen by looking through a hole in a sheet of paper.[1][2][3]
The Swedishrauk'n'roll[4] band Di sma undar jårdi, active in the 1980s, was named after these creatures.[5]