While it might be difficult to picture someone who is old enough to be a grandparent as a criminal, the sad reality is that many inmates are senior citizens, especially in the United States. Regardless of how you may personally feel about jailing anyone over 65, all of the people on this list committed punishable crimes. Nearly all of the world’s oldest prisoners died in jail or were released when they were too frail to carry out the rest of their sentence. As of April 2022, the information on this list is as accurate as possible and will be updated as needed.