| John Edward Cain | |
| State Assembly: | California |
| District: | 8th |
| Term: | January 6, 1941 – January 4, 1943 |
| Preceded: | Chester M. Gannon |
| Succeeded: | Chester M. Gannon |
| Birth Date: | 10 January 1887 |
| Party: | Democratic |
| Allegiance: |  United States |
| Battles: | World War I |
John Edward Cain (January 10, 1887 – October 4, 1951) was an American politician who served in the California legislature as an Assembly member for the 8th district.[1] During World War I he served in the United States Army.[2]