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).
Amaya has been climbing in recent years. All-time it's been given to 62,834 U.S. babies, the 264th most common name by sound today, peaking at 3,247 in 2018, with 2,786 in 2025.
By sound, Amaya also includes the spellings Amayah, Amaia, Amiah, Amyah. Spellings sometimes heard the same way: Amiya.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).