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).
Sean
Sean is now well below its former popularity. All-time it's been given to 845,343 U.S. babies, the 543rd most common name by sound today, peaking at 26,776 in 1971, with 1,123 in 2025.
By sound, Sean also includes the spellings Shawn, Shaun, Shon.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).