Updated June 9, 2019 Find Baby Names Boy name origins & meanings Old English : One who mills Boy name variations Miller Miller + 7% this year Masculine Rare READ MORE DETAILS Millson Millson 0 % this year Masculine Rare READ MORE DETAILS How Popular Is The Name Mills Family name origins & meanings English and Scottish : variant of Mill 1.English : either a metronymic form of Mill 2, or a variant of Miles.Irish : in Ulster this is the English name, but elsewhere in Ireland it may be a translation of a Gaelic topographic byname, an Mhuilinn ‘of the mill’.