Captain Leslie Wong was a Starfleet officer and commanding officer of the starship USS Cairo during the Dominion War. She was one of Jadzia Dax' instructors when she was a sophomore at Starfleet Academy.
In 2374, Captain Wong was aboard the Cairo when it disappeared while on patrol near the Romulan Neutral Zone. A file from USS Akagi reported Captain Wong missing in action. A file from USS Zapata reported her killed. (DS9: "In the Pale Moonlight")