Billi comes from the Modern American tradition, meaning Short form of "William" or "Wilhelmina.".
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How popular is Billi?
1976peak year
Billi first appears in the U.S. registration record in 1915. Its popularity climbed over the following decades. In 1976, 84 babies received the name (ranked #1297). Today it sits well outside the top 1,000 (around #13334), with roughly 7 babies named Billi each year. Billi's usage has held roughly steady recently. In total, around 1,745 babies have been registered with this name since 1880.
Year-by-year registrations1880–2024 · U.S. Social Security data
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