| Grouping | Mythological creature Fairy Sprite |
|---|---|
| First attested | In folklore |
| Other name(s) | Knacker Tommyknocker |
| Country | Britain |
| Region | Cornwall and Devon |
| Details | Mines |
The Knocker, Knacker, or Tommyknocker (US) is a mythical, subterranean, gnome-like creature in Cornish and Devon folklore. The Welsh counterpart is the coblyn. It is closely related to the Irish leprechaun, Kentish kloker and the English and Scottish brownie. The Cornish described the creature as a little person 2 ft 0 in (0.61 m) tall, with a disproportionately large head, long arms, wrinkled skin, and white whiskers. It wears a tiny version of standard miner's garb and commits random mischief, such as stealing miners' unattended tools and food.