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What does Willhelmus mean?

Willhelmus Pronunciation of Willhelmus [will-hel-mus] as a name for boys is an Old German name, and Willhelmus means "determined protector". Willhelmus is an alternate form of William (Old German): from wil meaning "will".

Associated with: determined (faithful), protector (defender).


2 related forms via William: Wilhelm and Wilhelmus.

Creative forms:


Middle name pairings:
Willhelmus Jamarion (W.J.), ..

How popular is Willhelmus?

Willhelmus is an uncommonly occurring given name for men. Willhelmus is an equivalently unusual surname too for both adults and children. (2000 U.S. Demographics)

Which version is better?

with its source form and related boy names. Prominent varying forms of Willhelmus (unlisted) appearing in the Top 2000 are William (#5 via latest list) and Wilhelm. Adoption of these forms of Willhelmus was widespread 135 years ago (median #461) and has become significantly lower since (#1002, down 89.3%), with the form William becoming somewhat outmoded. (2015 U.S. SSA Records)

Top 2000 baby names ranking of Wilhelm, William in U.S.

Top 100 baby names ranking of Wilhelm, William outside U.S.

Similar Names

Suggested similar names are Alpheaus, Alpheus, Archelaus, Nicholaus, Nicodemus, Nigellus, Nikodemus, Vilhelm, Wilkes, Willbur, Willem, Willerd, Willes, Willess, Willet, Willets, Willett, Willey, Williams, Willie, Willis, Williss, Willkes, Willkins (see Wilkinson), Willmar (see Wilmer), Willmer and Wills. These names tend to be more frequently used than Willhelmus.

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in meaning and etymology.