| Ostermiething | |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 48.0472°N 12.8306°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Upper Austria |
| Subdivision Type2: | District |
| Subdivision Name2: | Braunau am Inn |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Gerhard Holzner |
| Elevation M: | 423 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Registration Plate: | BR |
| Postal Code Type: | Postal code |
| Postal Code: | 5121 |
| Area Code Type: | Area code |
| Area Code: | 06278 |
| Website: | www.ostermiething.at |
Ostermiething is a municipality in the district of Braunau am Inn in the Austrian state of Upper Austria.
Ostermiething lies in the upper Innviertel on the western edge of the Weilhart forest directly across the Salzach from Germany. There is a bridge to the Bavarian town of Tittmoning.