Thomas O. Streissguth (February 27, 1889 – December 21, 1950) was an American lawyer and jurist.
In 1923, he moved to New Ulm, Minnesota where he lived for the rest of his life.
Streissguth served as district attorney for Brown County, Minnesota from 1924 to 1942.
Streissguth then served on the Minnesota Supreme Court briefly for three months in 1942 and again for one year in 1944.
Streissguth died of a heart attack in New Ulm, Minnesota.