| State Senate2: | Iowa |
| District2: | 46th |
| Term Start2: | January 11, 1999 |
| Term End2: | January 8, 2001 |
| Preceded2: | Patty Judge |
| Succeeded2: | Paul McKinley |
| Office1: | Second Gentleman of Iowa |
| Governor1: | Chet Culver |
| Term Start1: | January 12, 2007 |
| Term End1: | January 14, 2011 |
| Term Label1: | In role |
| Predecessor1: | Tom Zimmerman |
| Successor1: | Kevin Reynolds |
| Birth Date: | 20 September 1944 |
| Birth Place: | Albia, Iowa, U.S. |
| Party: | Democratic |
| Spouse: | Patty Poole |
| Children: | 3 |
| Occupation: | Farmer |
| Alma Mater: | Iowa State University |
| Allegiance: |  United States |
| Branch: | United States Marine Corps |
| Serviceyears: | 1967–1970 |
| Battles: | Vietnam War |
John William Judge (born September 20, 1944) is an American politician from Iowa.
Born in Albia, Iowa, to William P. and Mildred, Judge graduated from Albia Community High School and went to Iowa State University.[1] He served in the United States Marine Corps and was stationed in Vietnam serving with the military police. Judge was a farmer and banker. He was married to Patty Judge who served in the Iowa Senate and then as Lieutenant Governor of Iowa. Judge had three sons; Douglas, W. Dien, and Joseph.[2] Judge also served in the Iowa Senate from 1999 to 2003 and was a Democrat.[3] [4]
Judge was a member of the Knights of Columbus, and American Legion.