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).
Xavier
Xavier is down from its peak but still widely used. All-time it's been given to 176,676 U.S. babies, the 192nd most common name by sound today, peaking at 7,224 in 2007, with 3,575 in 2025.
By sound, Xavier also includes the spellings Xzavier, Zavier.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).