Fleet Admiral Federico De La Jolla was an overweight, Human Starfleet officer active during the 2280s.
In 2286, De La Jolla commanded a Federation fleet that assembled to meet a Klingon fleet under the command of Morith. De La Jolla was not convinced by James T. Kirk's claims that the Klingons were peaceful, so he made Spock the fleet's spokesman, in order so that Spock could judge Kirk's claims, based solely upon his relationship with Kirk. (TOS novel: Timetrap)