| Reuben A. Knoblauch | |
| State Senate1: | Washington |
| District1: | 25th |
| Predecessor1: | Ted F. Schroeder |
| Successor1: | Marcus Gaspard |
| Term Start1: | January 12, 1953 |
| Term End1: | January 10, 1977 |
| State House2: | Washington |
| District2: | 25th |
| Predecessor2: | Frank Chervenka |
| Successor2: | Elmer Hyppa |
| Term Start2: | January 13, 1947 |
| Term End2: | January 12, 1953 |
| Birth Date: | 22 December 1914 |
| Birth Place: | Sumner, Washington, U.S. |
| Death Place: | Washington, U.S. |
| Party: | Democratic |
Reuben A. Knoblauch (December 22, 1914 - November 13, 1992) was an American politician in the state of Washington. He served in the Washington House of Representatives from 1947 to 1953 and in the Senate from 1953 to 1977.[1] [2] [3]