Unknown; possibly a modern variant of Melany or Maloni
Malonni is a rare modern American name with no single established etymology. It is likely a creative spelling variant of Maloni, which may be a Polynesian name meaning 'calm' or a variation of the Greek name Melanie, meaning 'black' or 'dark'.
Fewer than 5 girls were named Malonni in 2025.
US births per 5-year period, 1990–present (SSA data).