|Sigma Draconis III|
|Native Species:||Sigma Draconis III natives|
|Location:||Sigma Draconis system|
Sigma Draconis III was an inhabited M class planet. The planet had no moons. This was the homeworld for a pre-warp capable species. It was the third planet in the Sigma Draconis planetary system. This was one of three M class planets in this system; the others were Sigma Draconis IV and Sigma Draconis VI.
The planet was larger and more heavily populated than Sigma Draconis IV. By 2268, the planet's inhabitants had a pre-spaceflight culture with an industrial scale rating of B, which was equivalent to Earth in 1485, and a technological rating of 3. (TOS: "Spock's Brain")