| George S. Parker High School | |
| Streetaddress: | 3125 Mineral Point |
| City: | Janesville |
| State: | Wisconsin |
| County: | Rock County |
| Zipcode: | 53548 |
| Country: | United States |
| District: | School District of Janesville |
| Superintendent: | Mark Holzman[1] |
| Principal: | Christopher Laue[2] |
| Staff: | 97.28 (FTE)[3] |
| Ratio: | 12.85 |
| Gender: | coed |
| Type: | public secondary |
| Grades: | 9-12 |
| Conference: | WIAA Big Eight Conference |
| Fightsong: | "Green & Gold" |
| Motto: | Everybody's Somebody at Parker |
| Rival: | Joseph A. Craig High School |
| Mascot: | Victor the Viking |
| Team Name: | Vikings |
| Nickname: | Cow Pie High[4] |
| School Colors: | green & gold |
| Yearbook: | Valhalla |
| Opened: | 1968 |
| Enrollment: | 1,291 (2023–24)[5] |
| Homepage: | http://www.janesvilleparker.org/ |
George S. Parker High School is a comprehensive public high school located on the west side of the city of Janesville, Wisconsin. The school, named for George S. Parker, founder of the Parker Pen Company, is a part of the School District of Janesville and was constructed in 1967. The rival east side school is Joseph A. Craig High School.
In Nov 2006, a referendum passed that provided nearly $71 million for updates and renovation to both Parker and Craig High Schools.[6] Construction began in October 2007 and lasted two years.[7]
The school sports teams compete in the Big Eight Conference. State level competition is governed by the Wisconsin Interscholastic Athletic Association (WIAA).