Martin Donald Van Oosterhout (October 10, 1900 – January 28, 1979) was a legislator and state court judge in northwestern Iowa, and a United States circuit judge of the United States Court of Appeals for the Eighth Circuit.
In the last four of those years (from 1929 to 1933) he also served as a Republican member of the Iowa House of Representatives.
[2] On August 16, 1954, Van Oosterhout was nominated by President Dwight D. Eisenhower to a seat on the United States Court of Appeals for the Eighth Circuit vacated when a fellow Iowan, Judge Seth Thomas, assumed senior status.
He served as Chief Judge and member of the Judicial Conference of the United States from 1968 to 1970.
He was married to Ethel Greenway, with whom he had one son, Peter Denne.