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).
Giselle
Giselle is now well below its former popularity. All-time it's been given to 72,483 U.S. babies, the 591st most common name by sound today, peaking at 3,610 in 2007, with 1,073 in 2025.
By sound, Giselle also includes the spellings Gisselle, Gisele, Jazelle, Gizelle.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).