Kallidah was a planet that was the homeworld of the Kallidahin species located in the Subterrel sector of the Outer Rim Territories. The planet's Archaeological Research Council established a Research Base on the nearby Polis Massa asteroid colony to try and uncover evidence of an evolutionary link between the Kallidahin and the extinct Eellayin natives. Later, the entire population of Kallidah abandoned their homeworld and moved to Polis Massa to work on the project.
- Star Wars: Complete Locations (First mentioned)
- The New Essential Guide to Alien Species (Indirect mention only)
- Star Wars: The Official Starships & Vehicles Collection 31
- (Indirect mention only)
- Strongholds of Resistance