Resolute protector
A rare spelling variant of the classic Germanic name William. It is derived from the elements 'wil', meaning desire or will, and 'helm', meaning helmet or protection. This specific three-'l' spelling is highly unusual and likely a modern creative variation or a typographical variant of the traditional form.
Less common today
Willliam isn't in the latest US Top 1000. It last peaked at #6,531 in 2006.
US births per 5-year period, 1990βpresent (SSA data).