Judy Elkins was a Starfleet officer in the 24th century.
In the 2370s, she was listed as a Tactical Ops officer on the dedication plaques of Defiant-class starships. (DS9: "The Die is Cast", dedication plaque; DS9: "The Dogs of War", dedication plaque)
This character was only mentioned in writing.
She was named after visual effects coordinator Judy Elkins