Updated June 9, 2019 Find Baby Names Boy name origins & meanings Irish : Mouth of the Roe River; wheelwright Boy name variations Monroe Monroe - 13% this year Neutral Uncommon READ MORE DETAILS Munroe Munroe 0 % this year Masculine Rare READ MORE DETAILS Monro Monro 0 % this year Masculine Rare READ MORE DETAILS How Popular Is The Name Munro Family name origins & meanings Scottish : variant of Monroe.In Ireland, Munroe has come to replace the surname Mulroy in some cases.