Thaddeus M. Buczko (February 23, 1926 – March 7, 2021) was an American politician who served as a Salem, Massachusetts city councillor, a member of the Massachusetts House of Representatives and as Massachusetts Auditor. Additionally, from 1981 to 1996, Buczko served as a justice of the Essex County Probate and Family Court; Buczko, retired in 1996. He died on March 7, 2021, in Salem, Massachusetts, at age 95.