Thetacon (polity)
| This article is about the city from the live-action film continuity. For the tribe from the live-action film continuity, see Thetacon (tribe). |

Thetacon is one of the older cities on Cybertron and home to the Thetacon tribe of Transformers.
Fiction
IDW Dark of the Moon comics
In the wake of the Cybertron's revival, Sentinel Prime and his followers were invited to Thetacon to recover from their mission. While Sentinel Prime withdrew from public to make plans for Cybertron's near future, his followers roamed the city, planning their own immediate future as they admired their surroundings or questioning their use now that Cybertron was drifting into an era of peace.

By the end of the first day since the AllSpark had been restored, Sentinel Prime called Optimus to him to inform him of his decision to make him the ruler of the united planet. Foundation #1 Optimus declined, believing there were ways in which he could help Cybertron flourish better. Sentinel Prime accepted his decision, and that would've been the end of it had Megatron not overheard the whole conversation. The next morning, he talked about it with Shockwave while the two flew along the outskirts of Thetacon. Their conversation was interrupted by a scream for help coming from the ground below, where a class of hatchlings on an educational trip were being attacked by a subterranean monster. The two chased away the creature, meeting Starscream, the hatchlings' guard, in the process. Foundation #2

