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).
Lucy
Lucy has been climbing back after years of decline. All-time it's been given to 245,362 U.S. babies, the 115th most common name by sound today, peaking at 6,391 in 2025, with 6,391 in 2025.
By sound, Lucy also includes the spellings Lucie.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).