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).
Matias
Matias has been climbing in recent years. All-time it's been given to 28,073 U.S. babies, the 343rd most common name by sound today, peaking at 2,455 in 2024, with 2,303 in 2025.
By sound, Matias also includes the spellings Mattias. Spellings sometimes heard the same way: Mathias, Matthias.
Rising