Thadine

Thadine is a rare feminine name likely derived as a feminine form of Thaddeus or Thad. Thaddeus has Aramaic origins meaning 'gift of God' or 'courageous heart.' The addition of the feminine suffix '-ine' transforms the traditionally masculine name into a distinctive option for girls. Thadine has remained exceptionally uncommon throughout the decades, never appearing in popular name rankings in the United States or other English-speaking countries. This rarity gives it a unique appeal for parents seeking a name with virtually no chance of duplication in their child's peer group. Thadine carries a vintage quality with a distinctive sound that sets it apart from more common feminine names.

Pronounced thuh-DEEN.

As of October 2026, Thadine ranked #6547 in US births in 1954 SSA.