How to read the band →
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).
Avalynn
Avalynn has stayed fairly steady in American naming for generations. All-time it's been given to 8,113 U.S. babies, the 1,278th most common name by sound today, peaking at 639 in 2017, with 334 in 2025.
By sound, Avalynn also includes the spellings Avalyn.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).