Lieutenant Junior Grade Laura E. Derr was a Starfleet officer during the Dominion War.
In 2374, USS Cochrane, USS Wyoming, Starbase 129, and Starbase 153 reported Derr as killed in action; however, the USS Repulse reported her as missing in action. Her name was listed in a casualty list that was displayed in the wardroom of Deep Space 9. (DS9: "In the Pale Moonlight", okudagram)