The Good Witch of the North, sometimes named Locasta or Tattypoo, is a fictional character in the Land of Oz, created by American author L. Frank Baum.

Using a magic slate formed from her hat, she advises Dorothy to travel to the Emerald City to seek the aid of the powerful Wizard of Oz in returning to Kansas.

This statement is proven to be correct later in the book, when the sight of the shining mark left by the kiss prevents Dorothy from being harmed by the Winged monkeys or the Wicked Witch of the West.

The Gillikin Country had once been under the power of Mombi, but she was overpowered and routed by the Good Witch of the North, as revealed in Dorothy and the Wizard in Oz.

In the movie, Glinda the Good Witch of the North, portrayed by Billie Burke, is only slightly matronly and quite beautiful, and in addition to meeting Dorothy on her arrival in Oz, she also supervises her progress on her journey to the Wizard and helps her find her way back to Kansas at the end of the story.

She wears a coral pink ball gown with a matching crown and carries a long magic wand with a glittering star on the tip.

Orin had originally been kidnapped by the former Wicked Witch of the North, Mombi, who was in love with her husband, King Cheeriobed of the Ozure Isles.

After being restored to her real self, twenty five years later, Orin loses the magical powers she acquired as the Good Witch of the North.

She returns to her husband and son and resumes her life as Queen of the Ozure Isles, no longer wishing to rule the Gillikin Country.

Glinda, along with her other good witch counterpart, appear in a little-known 1995 version of The Wizard of Oz made for British television.

Locasta, the true Good Witch of the North, was lost in the Great Outside World, while the enchanted Queen Orin took her title under the name of Tattypoo.

Her magical slate is changed into a tiny book which transforms into a giant tome when blown upon, and, in addition to the divination qualities, also functions as an encyclopedia.

The VeggieTales episode The Wonderful Wizard of Ha's from Big Idea Productions contains Madame Blueberry as "Splenda the Sweet But Non-Fattening Fairy" (brand name for a sugar substitute) replacing both of the two Good Witches.

In the Amazon Prime Video 2015 animated series, Lost in Oz, the Witch appears as Glinda the Good, the ruler of the Emerald City who disappeared years ago.