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).
Rylan
Rylan is now well below its former popularity. All-time it's been given to 52,331 U.S. babies, the 486th most common name by sound today, peaking at 3,828 in 2011, with 1,392 in 2025.
By sound, Rylan also includes the spellings Rylen, Rilynn, Rylynn.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).