Who is Jack Frost? Jack Frost Origins
There’s not one particular story that we can point to for the creation of Jack Frost, but rather a collection of stories taken from countries all over the world. In some cultures he’s considered a villain, in some hero, but in all of them he’s the personification of the winter season.
While there’s much debate over the origins of Jack Frost, many believe he originated from Scandinavian or Anglo-Saxon traditions. In one popular story, he’s the son of Kari, Norse god of the winds. In Finnish folklore, there is the legend of Frostman and Frostwoman, who control weather and must keep good conditions for the reindeer to live in. In many cultures around the world, it is common to personify things like the seasons and weather. In Japanese folklore, for example, there are stories of a Frost Man and his brother, Mist Man, who are the keepers of frost and dew.
As for the Jack Frost of today, there isn’t much reasoning as to why his name has come to be Jack, other than “Jack” was a common slang word for “man” in England during the 16th and 17 centuries.