| Office: | Sheriff of Cook County |
| Term Start: | 1878 |
| Term End: | 1880 |
| Preceded: | Charles Kern |
| Succeeded: | Orrin L. Mann |
| Birth Date: | 19 February 1835 |
| Birth Place: | Grand Duchy of Hesse and by Rhine |
| Nationality: | American |
| Death Place: | Chicago, Illinois |
| Party: | Republican |
| Allegiance: | United States of America Union |
| Branch: | United States Army Union Army |
| Serviceyears: | 1861–1865 |
| Battles: | American Civil War |
John Hoffman (February 19, 1835 - December 18, 1893) was a German American politician in Chicago who served as the Republican Sheriff of Cook County from 1878 to 1880. An immigrant from Hesse Darmstadt and a veteran of the American Civil War, Hoffman returned to Chicago following his military service and engaged in business, including the ownership of a livery stable in the city. He was a member of the Chicago Board of Trade and active in Republican political circles. Hoffman was elected Sheriff by a margin of 4,000 votes and served a single term before Republicans lost the 1879 elections.[1] [2]