| Robert H. Renken | |
| Office: | Member of the Iowa House of Representatives |
| Term Start: | 1979 |
| Term End: | 1997 |
| Birth Date: | 25 September 1921 |
| Birth Place: | Grundy County, Iowa, U.S. |
| Death Place: | Grundy Center, Iowa, U.S. |
| Party: | Republican |
| Occupation: | farmer |
Robert Harold Renken (September 25, 1921 - December 29, 2018) was an American politician in the state of Iowa.[1] Renken was born in Grundy County, Iowa. He was a livestock and grain farmer. He served in the Iowa House of Representatives from 1979 to 1997, as a Republican.[2]