| Wilmer Rensink | |
| Office: | Member of the Iowa State Senate |
| Term Start: | 1987 |
| Term End: | 1999 |
| Office2: | Member of the Iowa House of Representatives |
| Term2: | 1983–1987 |
| Birth Date: | 22 March 1933 |
| Birth Place: | Sioux Center, Iowa, U.S. |
| Party: | Republican |
| Occupation: | farmer |
Wilmer Rensink (born March 22, 1933) is an American politician in the state of Iowa.
Rensink was born in Sioux Center, Iowa. He is a farmer and livestock feeder. He served in the Iowa State Senate from 1987 to 1999, and House of Representatives from 1983 to 1987 as a Republican.[1]