The Kazleti homeworld was an inhabited planet, which was the homeworld of the Kazleti.
In the mid-24th century, the Bolian Chell visited this planet where he learned about their technique of making a type of pendant. (VOY: "Learning Curve")
This planet was only mentioned in dialogue.
The informal name of this planet was from the Star Trek Encyclopedia (4th ed., vol. 1, p. 405), in its entry for the "Kazleti pendant".