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).
Elena has climbed over the years and is holding near its high. All-time it's been given to 234,986 U.S. babies, the 41st most common name by sound today, at an all-time high of 8,689 in 2025.
By sound, Elena also includes the spellings Alaina, Alayna, Elaina, Elayna, Aleyna, Elainna. Spellings sometimes heard the same way: Alana, Alena, Ellena.