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).
Megan
Megan is now well below its former popularity. All-time it's been given to 597,346 U.S. babies, the 981st most common name by sound today, peaking at 27,884 in 1985, with 403 in 2025.
By sound, Megan also includes the spellings Meghan, Meagan, Meaghan, Meghann.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).