Commodore William Geary was a Starfleet flag officer in the mid-23rd century.
In 2259, Geary was elevated to commodore, though the promotion had been widely perceived to be Captain Marie Batel's. Batel believed that her promotion had been held up by Admiral Pasalk in retaliation for losing their case against Una Chin-Riley. (SNW: "Among the Lotus Eaters")
This character was only mentioned in dialogue.