| State: | IN |
| Type: | IN |
| Route: | 11 |
| Established: | October 1, 1926[1] |
| Map Custom: | yes |
| Map Notes: | SR 11 highlighted in red |
| Length Mi: | 56.004 |
| Section1: | Southern segment |
| Length Mi1: | 29.820 |
| Direction A1: | South |
| Terminus A1: | near Mauckport |
| Direction B1: | North |
| Terminus B1: | near Lanesville |
| Section2: | Northern segment |
| Length Mi2: | 26.184 |
| Direction A2: | South |
| Terminus A2: | in Dudleytown |
| Junction2: | in Seymour |
| Direction B2: | North |
| Terminus B2: | near Columbus |
| Counties: | Bartholomew, Jackson, Floyd, Harrison |
| Previous Type: | IN |
| Previous Route: | 10 |
| Next Type: | US |
| Next Route: | 12 |
State Road 11 in the U.S. state of Indiana is located in south central Indiana and is divided into a northern and southern section. These sections were never connected.
The southern portion is a southwest–northeast road in Floyd and Harrison counties. Its southern terminus is at State Road 135 near the town of Mauckport, which is on the Ohio River. From there, the highway runs roughly northeast for a distance of about 30miles and ends where it meets State Road 62, east of the town of Lanesville.
The northern portion is a north - south road in Bartholomew and Jackson counties. Its southern terminus is at State Road 250 in the small town of Dudleytown a few miles south of Seymour; the highway runs north through Seymour to Columbus, a distance of about 26miles, and ends where it meets Indiana State Road 46.
Before 1935 the southern section of SR 11 was number State Road 33 (SR 33). Then in 1935 U.S. Route 33 (US 33) was commissioned in Indiana and SR 33 was decommissioned.
In the 1970s the northern section of SR 11 was numbered U.S. Route 31 Alternate.