What does Williams mean?
Williams /wil-li-ams/ as a name for boys. Williams' name origin is Old German, and the meaning of Williams is "determined protector". Williams is a version, with the suffix -s, of William (Old German): from wil meaning "will".
(male) Walams, Walliams, ..
(female) Willida, Willilo, ..
How popular is Williams?
Williams is a very prominent first name for males (#596 out of 1220, Top 49%) and also a very prominent last name for both adults and children (#3 out of 150436, Top 1%). (2000 U.S. Demographics)
Shown below is the baby name popularity of Williams for boys. Williams reached its apex rank of #604 in the U.S. in the 1880s, but is not found in the list at the moment. (Top 2000 Names, 2014)
Below is a graphed comparison of the usage of Williams and corresponding names. William (#5 the previous year), Willie (#722), Willem (#1731) and Willis (#1873) are the popular variation forms of Williams. Other variants, like Willi, are seldom used. Usage of these forms of Williams was widespread a century ago (average #566) and is now significantly reduced (#1266, 86% less usage), with forms such as Willis becoming somewhat dated.
Recommended names are Cillian, Gillian, Gillies, Gillis, Gilliss, Hilliard, Hilliary, Killian▲, Villiers, Wallace▼, Wallach, Wallas, Wallie, Wallis, Waltham, Wells, Wickham, Wilhelm, Wilhelmus, Wilkes, Wilkie, Wilkins, Will▼, Willard▼, Willbur, Willerd, Willes, Willess, Willet, Willets, Willett, Willey, Willfred, Willfrid, Willfryd, Willhelmus, Williss, Williston, Willkes, Willkie, Willkins (see Wilkinson), Willmar (see Wilmer), Willmer, Willson, Willy, Wilmar, Windham, Wolfram and Wulfram. These names tend to be less commonly used than Williams.