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).
Sonny
Sonny has been climbing in recent years. All-time it's been given to 41,053 U.S. babies, the 395th most common name by sound today, peaking at 2,190 in 2025, with 2,190 in 2025.
By sound, Sonny also includes the spellings Sunny.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).