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Onslow meaning and name origin
Onslow \o-ns-low, on-slow\ as a boy's name is of Old English origin, and the meaning of Onslow is "enthusiast's hill". Place name.
Onslow has 2 variant forms: Onslowe and Ounslow.
Baby names that sound like Onslow are Winslow, Ansley, Ansly, Anslie and Anslea.
Popularity of Onslow
Onslow is not a popular first name for men and an equally uncommon surname or last name for all people. (1990 U.S. Census)
Displayed below is the baby names popularity of the name Onslow for boys. (2010 statistics) Compare Onslow with its variant forms and related boy baby names.