The name of an AI in the computer game series, Marathon. Leela was responsible for human-computer interaction on the colony ship and was the first to warn the ship of attack by Pfhor slave ships. Unlike Tycho and Durandal, Leela attempted to help the humans on board the Marathon from enslavement by the alien race.

However, her efforts were in vain as evidenced by the final screen:

"While Tau Ceti was being nuked down to bedrock in 2794, Pfhor scientists disassembled and removed the AI Leela from the Marathon, loading her aboard a vessel bound for the Pfhor homeworld. But the ship fell into the hands of a Nar privateer between jumps at Beta Naxos, and was never seen by the Pfhor again.

Thinking the cargo little more than scrap, the Nar captain sold the Pfhor ship, Leela and all, to a Vylae merchant. The subsequent crash of the Vylae FTL network when Leela was reassembled and reactivated is still legendary in the annals of rampancy, and the Vylae have long since accepted that they will never expunge her from their fifteen-world network. "