| David S. Laustsen | |
| Birth Date: | 13 June 1947 |
| Birth Place: | Racine, Wisconsin, U.S. |
| Death Place: | Doylestown, Pennsylvania, U.S. |
| Office1: | Member of the South Dakota House of Representatives |
| Term Start1: | 1977 |
| Term End1: | 1984 |
| Office2: | Member of the South Dakota Senate |
| Term Start2: | 1985 |
| Term End2: | 1987 |
| Party: | Democratic[1] |
| Spouse: | Jean Barnum[2] |
| Alma Mater: | Northwestern University |
David S. Laustsen (June 13, 1947 – January 6, 2023) was an American politician.[3] He served as a Democratic member of the South Dakota House of Representatives and the South Dakota Senate.[4]
Laustsen was born in Racine, Wisconsin. He attended Central High School in Aberdeen, South Dakota and Northwestern University.
In 1977, Laustsen was elected to the South Dakota House of Representatives, serving until 1984. In 1985, he was elected to the South Dakota Senate, resigning in 1987, when he was accepted to attend Temple Law School.
Laustsen died on January 6, 2023, at the age of 75 in Doylestown, Pennsylvania.