Dosi homeworld
The Dosi homeworld was an inhabited planet in the Gamma Quadrant. This was the homeworld of the Dosi. 

In 2370, Quark and  traveled to the Dosi homeworld to get them to sign the tulaberry contract for the Ferengi Alliance. In fact, Grand Nagus Zek had hoped the Ferengi would learn of how to contact the Dominion by traveling to the Dosi homeworld. ()

Appendices

Background information 
According to Star Trek: Star Charts (pp. 70, 74), Dosi, the Dosi homeworld, was a class M planet in the Dosi system. The official name of the planet's government was the . This world was allied with the Dominion. The planetary capital was . Dominant species was the humanoid Dosi. In 2378, there were an estimated 1.5 billion Dosi living on this planet. It was not known when the Dosi became warp-capable. The Dosi established trade relations with the Vorta in the late 23rd century.

According to Star Trek: Star Charts (p. 74), the primary of the Dosi system was a M-class star. This system was a destination on the Gamma Quadrant Bio-Survey (2369-75).

Apocrypha 
According to the Star Trek: Deep Space Nine - Core Game Book, the Dosi homeworld is called Dosa II.

External link 
 

Unnamed planets
Homeworlds