Unknown; possibly a modern combination or variant
Mirleth is a rare name with no established etymological history. It is likely a modern creative coinage, possibly blending the popular 'Mir-' prefix (found in names like Miriam or Mireya) with the '-leth' suffix (as seen in names like Yanileth or Yamileth), which is a naming trend particularly prevalent in Latin American communities.
Less common today
Mirleth isn't in the latest US Top 1000. It last peaked at #4,066 in 2025.
US births per 5-year period, 1990–present (SSA data).
