Walpurgis Night  is a traditional religious holiday of pre-Christian origin, celebrated today by Christian as well as non-Christian communities, on April 30

The current festival is, in most countries that celebrate it, named after Saint Walpurga, born in Devon about 710. Due to the coincidence of her holy day falling on the same day as the pagan holiday on which it was based, her name became associated with the celebrations. Walpurga was honoured in the same way that Vikings had celebrated spring and as they spread throughout Europe, the two dates became mixed together and created the Walpurgis Night celebration. Early Christianity had a policy of 'Christianising' pagan festivals so it is perhaps no accident that St. Walpurga's day was set to May 1.

Historically Walpurgisnacht is derived from various pagan spring customs. Bonfires were built to keep away the dead and chaotic spirits that were then widely believed to walk among the living. This is followed by the return of light and the sun as celebrated during May Day, although bonfires and witches are more closely associated with Easter.