37%RatingSave Gender Masculine Usage English Pronounced Pron. MIL-bərn [key·IPA] Meaning & History From an English surname that was from a place name meaning "mill stream" in Old English. PopularityDetails Last ranked #845 in 1937 United States People think this name isRate·Details classic mature formal strong refined complex serious nerdy Categories currently out of the US top 1000, isograms, place names, surnames, water