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).
Kian
Kian climbed for decades and has been a steadily popular name ever since. All-time it's been given to 21,274 U.S. babies, the 683rd most common name by sound today, peaking at 1,030 in 2025, with 1,030 in 2025.
By sound, Kian also includes the spellings Kyan, Cian.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).