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Sianni
GirlMeaning of Sianni: Welsh: 'God is gracious'
Sianni is a girl's name most strongly associated with Welsh naming. It has 6 letters and 2 syllables, and it is familiar but far from overused — 1578th most popular girls' name in the United States in 2025.
US rank 2025
#1578
128 babies in 2025
England & Wales 2024
—
Fewer than 3 babies or unlisted
US babies since 1880
574
First recorded 1996 · peak 2025
Trend
rising
Style: uncommon
Popularity over time
Gender split
0% boys · 100% girls, based on US, UK and international usage.
Origins & cultures
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