Thaddeus S. "Ted" Lechowicz (December 20, 1938 – January 5, 2009) was an American politician and businessman.

Lechowicz served in the United States Army and was a first lieutenant.

He worked in systems analysis and programming for the Cook County, Illinois Circuit Courts and was involved with the Democratic Party.

Lechowicz died at his home in Chicago, Illinois from heart failure.

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