Queen Modjadji, or the Rain Queen, is the hereditary queen of Balobedu, a people of the Limpopo Province of South Africa. The Rain Queen is believed to have special powers, including the ability to control the clouds and rainfall. She is known as a mystical and historic figure who brought rain to her allies and drought to her enemies. She is not a ruler as such, but a powerful rainmaker and a traditional healer (ngaka).

The Lobedu or Balobedu (also known as the BaLozwi or Bathobolo) are a southern African ethnic group that speak a Northern Sotho dialect. Their area is called Bolobedu. The name "balobedu" means "the mineral miners," lobela or go loba, - to mine. Their ancestors were part of the great Mapungubwe early civilization. They have their own kingdom, the Balobedu Kingdom, within the Limpopo Province of South Africa with a female ruler, the Rain Queen Modjadji.