Meaning and name origin
Thady is not a popular first name for males but a somewhat popular surname or last name for all people (#59733 out of 88799, Top 67%) (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Thady and its source form. The only popular variation form ranked in the Top 1000/100 is Thaddeus (#732). (2014 statistics).