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).
Zayden
Zayden has held a fairly steady level of use. All-time it's been given to 44,033 U.S. babies, the 322nd most common name by sound today, peaking at 3,213 in 2014, with 2,134 in 2025.
By sound, Zayden also includes the spellings Zaiden.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).