Thaddeous

Thaddeous is a variant spelling of Thaddeus, a masculine name with ancient roots. The name derives from the Aramaic 'Thaddai,' possibly meaning 'gift of God' or 'courageous heart.' Thaddeus appears in the New Testament as one of Jesus's twelve apostles, giving the name strong Christian associations. This particular spelling with an added 'o' gives the classic name a more elaborate, distinguished feel while maintaining its historical gravitas. Though never extremely common, Thaddeous has persisted through centuries, appealing to parents who value its religious significance, sophisticated sound, and the nickname options 'Thad' or 'Theo.' The name conveys strength, devotion, and a dignified heritage.

Pronounced THAD-ee-us.

As of October 2026, Thaddeous ranked #8363 in US births in 2002 SSA, peaked at #4574 in 1962.