Victory of the people
A rare phonetic spelling of the Greek name Nikolaos. It combines the elements 'nike', meaning victory, and 'laos', meaning people. While the 'Nicholas' spelling is classic, this specific variation is highly uncommon in the United States.
Less common today
Nickalaus isn't in the latest US Top 1000. It last peaked at #3,591 in 1991.
US births per 5-year period, 1990βpresent (SSA data).