Janitza Province was a location on Bajor.

A Bajoran woman who delivered a warning to Hikaru Sulu before her death was from Janitza Province. (TLE novel: Excelsior: Forged in Fire)

In 2371, Keiko O'Brien spent two weeks in the mountains of the province as the botanist for an agrobiology expedition. (DS9 episode: "The House of Quark")