-rthur names. 3 -rthur baby names for boys. Displaying for -rthur names 1-3. Arthur is a popular -rthur baby name. MacArthur and Mc- are uncommon -rthur baby names. Please click on each of these -rthur names for more details, or search for "rthur" by suffix for girls. Related search terms: -ur, -hur, -thur.