Elmer is a name of Germanic British origin. The given name originated as a surname, a medieval variant of the given name Aylmer, derived from Old English æþel (noble) and mær (famous). It was adopted as a given name in the United States, "in honor of the popularity of the brothers Ebenezer and Jonathan Elmer, leading supporters of the American Revolution." The name has fallen out of popular use in the last few decades and it is uncommon to find Elmers born after World War II. The name is common in the United States and Canada.