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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).
Carly
Carly is now well below its former popularity. All-time it's been given to 188,592 U.S. babies, the 565th most common name by sound today, peaking at 6,428 in 1998, with 998 in 2025.
By sound, Carly also includes the spellings Carley, Carlie, Karlee, Carlee, Karlie, Karli, Karly, Carli, Karley, Carleigh, Karleigh.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).