Meaning and name origin
Monroe \m(o)-nroe, mon-roe\ as a boy's name is pronounced mun-ROH. It is of Scottish and Gaelic origin, and the meaning of Monroe is "mouth of the river Rotha, in Ireland". Originated as a surname for those who lived near the river's mouth. The fifth American President, James Monroe (19th century), was known for his Monroe Doctrine, which by forbidding foreign interference in the Americas, helped define the new country's position in the world. Novelist H.H. Munro.
Monroe is a somewhat popular first name for males (#766 out of 1220, Top 63%) and an even more popular surname or last name for all people (#523 out of 88799, Top 1%) (Source: 2000 U.S. Population Census).
Displayed below is the baby name popularity of the name Monroe for boys. Monroe reached its highest rank of #206 in the U.S. in 1880-1889 (Source: 2014 Birth Name Statistics).