| Kathryn Niehouse | |
| State Assembly: | California |
| District: | 79th |
| Term Start: | January 4, 1943 |
| Term End: | January 3, 1955 |
| Predecessor: | Paul A. Richie |
| Successor: | Wanda Sankary |
| Birth Date: | 23 March 1898 |
| Birth Place: | Hillsboro, Indiana, U.S. |
| Death Place: | San Diego, California, U.S. |
| Party: | Republican |
| Children: | 1 |
| Birth Name: | Kathryn Theresa McBroom |
Kathryn Theresa Niehouse (née McBroom;[1] [2] March 23, 1898 – February 25, 1961) was an American politician and insurance agent.
She was a Republican state legislator in California.[3] She served in the legislature from the 79th district in San Diego, from 1942 to 1954.[4] She had a son.[5]