Willis
Diminutive of William, German
"resolute protection"
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Updated Thu Apr 17 2025
Willis Origin and Meaning
The name Willis is a girl's name meaning "resolute protection".
A once popular, now more quietly used name for boys, this William diminutive has potential as a "grandpa" style name for girls. With elements of Willa, Willow, and Iris, Willis was occasionally used as a feminine name in the first half of the 20th century.