David Louis Eilers (born December 3, 1936) 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). In his 81-game major league career, Eilers won eight games, lost six, and saved three. He allowed 146 hits and 29 bases on balls in 1231⁄3 innings pitched, and was credited with 37 games finished. He had 52 strikeouts.