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).
Sophie
Sophie has been climbing back after years of decline. All-time it's been given to 143,697 U.S. babies, the 187th most common name by sound today, peaking at 4,990 in 2011, with 4,122 in 2025.
By sound, Sophie also includes the spellings Sofie.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).