Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Ariana is down from its peak but still widely used. All-time it's been given to 224,805 U.S. babies, the 171st most common name by sound today, peaking at 10,796 in 2014, with 3,542 in 2025.
By sound, Ariana also includes the spellings Arianna. Spellings sometimes heard the same way: Ariyana.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).