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).
Maren has been climbing in recent years. All-time it's been given to 20,170 U.S. babies, the 837th most common name by sound today, peaking at 855 in 2021, with 767 in 2025.
By sound, Maren also includes the spellings Marin.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).