Davlos III is a planet in the Davlos system and is located near Klingon space. In the 2370s, ninety percent of the planet's trade was with the Klingon Empire.
Prior to 2266, it had been alleged that Morikmol had ripped a Klingon's arms out of their sockets in a bar on Davlos III. (VAN novel: Reap the Whirlwind)
In 2371, three Imperial Intelligence operatives placed a surveillance device made on Davlos III aboard Deep Space 9. (DS9 episode: "Visionary")