Commander Logt was a female Klingon serving in the Klingon Defense Force during the late 24th century.
By 2378, she was in charge of Emperor Kahless's personal guard on Boreth. In that year, Logt contacted B'Elanna Torres, who had recently returned from the Delta Quadrant after seven years as the USS Voyager's chief engineer, and told her that she needed to come to Boreth within five days to claim her mother Miral Torres' possessions or they would be burned in the ritual fire of cleansing. (VOY novel: Homecoming)
In 2379, when it was revealed that Kahless had been replaced by a hologram, Logt knew nothing of the switch; Captain Jean-Luc Picard suspected that Logt had been put to death for her inefficiency. (TNG novel: A Time for War, A Time for Peace)