Francis J. Lallensack (1916–1999) was a member of the Wisconsin State Assembly.
Lallensack was born on January 16, 1916, in Manitowoc, Wisconsin.
[2] During World War II, he served in the United States Army.
Lallensack died on December 5, 1999.
Lallensack was a member of the Assembly from 1973 to 1981.