David Louis Eilers is an American former professional baseball pitcher who worked in 81 games—all in relief—for the Milwaukee Braves, New York Mets and Houston Astros of Major League Baseball between 1964 and 1967. A right-hander, he was born in Oldenburg, Texas, stood 5 feet 11 inches (1.80 m) tall and weighed 188 pounds (85 kg).