| Official Name: | Otto |
| Mapsize: | 120px |
| Pushpin Map: | USA Indiana Clark County |
| Pushpin Map Caption: | Location in Clark County |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Clark |
| Subdivision Type3: | Township |
| Subdivision Name3: | Bethlehem |
| Coordinates: | 38.5708°N -85.4669°W |
| Elevation Ft: | 758 |
| Postal Code Type: | ZIP code |
| Postal Code: | 47162 |
| Blank Name: | FIPS code |
| Blank Info: | 18-57366[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 440759 |
Otto is an unincorporated community in Bethlehem Township, Clark County, Indiana.
A post office was established at Otto in 1864, and remained in operation until it was discontinued in 1950.[2] The community was named after a judge.[3]