红帽子（英语：Redcap），又称红软帽，是一种在约克郡及东北英格兰的民间传说中，既坏心肠又残忍的矮人、哥布林、精灵或小仙子。据说他们居住在英格兰与苏格兰边界间的许多毁弃城堡内。红帽子会谋杀那些迷路到他们家的旅客，并且用受害者的鲜血来染红他们的帽子（因此他们得到了这个称呼。）如果他们帽子上沾染的血污干涸的话就会死，因此红帽子必须经常杀人。虽然他们挥舞着沉重的铁矛并穿着铁鞋，红帽子的动作却相当迅速。要从红帽子的手中逃脱据说是不可能的。

他们被描述成有着红眼、利爪、獠牙的健壮老人。戴着一顶红色的帽子，左手带着一根长矛。

A red cap or redcap, also known as a powrie or dunter, is a type of malevolent murderous dwarf, goblin, elf or fairy found in Border Folklore. They are said to inhabit ruined castles found along the border between England and Scotland. Redcaps are said to murder travellers who stray into their homes and dye their hats with their victims' blood (from which they get their name). Redcaps must kill regularly, for if the blood staining their hats dries out, they die. Redcaps are very fast in spite of the heavy iron pikes they wield and the iron-shod boots they wear. Outrunning a redcap is supposedly impossible.