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).
Aaliyah is down from its peak but still widely used. All-time it's been given to 207,924 U.S. babies, the 113th most common name by sound today, peaking at 9,604 in 2012, with 4,963 in 2025.
By sound, Aaliyah also includes the spellings Aliyah, Aleah, Alia, Aliya, Alea, Alliyah. Spellings sometimes heard the same way: Aliah, Aleia.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).