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).
Wesley has been climbing in recent years. All-time it's been given to 261,153 U.S. babies, the 109th most common name by sound today, peaking at 6,141 in 2025, with 6,141 in 2025.
By sound, Wesley also includes the spellings Westley.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).