| John Groninga | |
| Office: | Member of the Iowa House of Representatives from the 20th district |
| Term Start: | January 10, 1983 |
| Term End: | January 10, 1993 |
| Predecessor: | Mike Connolly |
| Successor: | Dennis May |
| Birth Date: | 5 May 1945 |
| Birth Place: | Hackensack, New Jersey |
| Party: | Democratic |
John Groninga (born May 5, 1945) is an American politician who served in the Iowa House of Representatives from the 20th district from 1983 to 1993.[1] [2]