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).
Carolyn
Carolyn is now well below its former popularity. All-time it's been given to 576,459 U.S. babies, the 1,505th most common name by sound today, peaking at 21,331 in 1947, with 253 in 2025.
By sound, Carolyn also includes the spellings Carolynn, Karolyn, Carolann. Spellings sometimes heard the same way: Caroline.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).