Blithinia is an inhabited planet located in the Boron 437 star system, at coordinates 6.02N 2.99E.

In the 23rd century, Blithinia was home to a Tellarite mining colony. In the late 23rd century, the world had a population of around 10 million individuals, mostly Tellarite, and the government was a colonial member of the Federation. (FASA RPG module: The Federation)