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).
Danny
Danny is now well below its former popularity. All-time it's been given to 311,211 U.S. babies, the 693rd most common name by sound today, peaking at 9,396 in 1954, with 889 in 2025.
By sound, Danny also includes the spellings Dannie, Dani.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).