Ensign Rick Sternbach was the name of Human Starfleet officer in the 24th century. He was a crewmember aboard the USS Voyager.
In 2371, he was named in a crew manifest. (VOY: "Projections", crew manifest)
In 2374, he was named in a crew manifest. (VOY: "The Killing Game", crew manifest)
This name was an inside reference to production staff illustrator and technical consultant Rick Sternbach.