| Official Name: | Marion |
| Settlement Type: | Unincorporated community and Census-designated place |
| Pushpin Map: | Indiana#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Indiana |
| Subdivision Type2: | County |
| Subdivision Name2: | Shelby |
| Subdivision Type3: | Township |
| Subdivision Name3: | Marion |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 39.5883°N -85.7586°W |
| Elevation Ft: | 784 |
| Founder: | James Wilson John Sleeth |
| Named For: | General Francis Marion |
| Postal Code Type: | ZIP code |
| Postal Code: | 46176 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2830534 |
Marion is an unincorporated community in Marion Township, Shelby County, in the U.S. state of Indiana.
James Wilson was the first settler in the future Shelby County, raising a cabin there in 1819. In 1820 the New Purchase areas were formally surrendered to the government, and the land was made available for purchase. In 1820 Wilson and a few other settlers traveled to the Government Land Office at Brookville to make good their existing settlement claims.[1] Returning from Brookville, Wilson brought a surveyor. In partnership with John Sleeth, a townsite with streets, alleys and a public square was laid out and platted. This was the first such effort in the future county, which was authorized by the state legislature on 31 December 1821.[2] [3] The community was named for Francis Marion, an army officer during the American Revolutionary War,[3] A post office opened at Marion in 1823.[4] The post office was renamed Noah Post Office in September 1836, and was discontinued in 1902.[5]
Marion once contained a high school which closed in about 1908.[6]