| John G. Good, Jr. | |
| State Senate: | Pennsylvania |
| District: | 47th |
| Term Start: | June 21, 1971[1] |
| Term End: | November 30, 1972 |
| Constituency: | Parts of Beaver and Washington Counties |
| Predecessor: | Ernest Kline |
| Successor: | James Ross |
| Birth Date: | 17 May 1926 |
| Birth Place: | Pittsburgh, Pennsylvania, U.S. |
| Death Place: | Beaver County, Pennsylvania, U.S. |
| Party: | Republican |
| Occupation: | attorney |
| Spouse: | Wanda F. Anzio |
| Children: | Richard Good, John Good III, Rob Good |
| Residence: | Beaver, Pennsylvania |
| Nickname: | Jack |
| Allegiance: |  United States |
| Branch: | United States Navy |
| Serviceyears: | World War II |
John G. Good, Jr. (May 17, 1926 – April 10, 2003) was a Republican member of the Pennsylvania State Senate.[2] He was elected to represent the 47th senatorial district in a 1971 special election to fill the remaining term of Ernest P. Kline, who has been elected Lieutenant Governor of Pennsylvania.
An attorney, he resided in Beaver County, Pennsylvania,[3] where he died in April 2003 at the age of 76.[4]