| Koppl | |
| Native Name: | Koppü |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 47.8081°N 13.1556°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Salzburg |
| Subdivision Type2: | District |
| Subdivision Name2: | Salzburg-Umgebung |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Rupert Reischl |
| Elevation M: | 755 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Registration Plate: | SL |
| Postal Code Type: | Postal code |
| Postal Code: | 5321 |
| Area Code Type: | Area code |
| Area Code: | 06221 |
| Website: | https://www.koppl.at/ |
Koppl (Central Bavarian: Koppü) is a municipality in the district of Salzburg-Umgebung in the state of Salzburg in Austria. In the west it borders on the Salzburg urban area.
The commune is located in the northern foothills of the Salzkammergut Mountains east of the Gaisberg peak, a recreational area with views over the city of Salzburg. The municipal area comprises the cadastral communities of Koppl proper and Heuberg.
The Salzburgring motorsport race track is located northeast of Koppl.
The church of Koppl, mentioned for the first time in the 13th century, was initially a subsidiary of the parish of Seekirchen. For centuries, the manor was owned by the bishops of Chiemsee. In 1823-24 Joseph Mohr (1792–1848), the lyricist of the famous Christmas carol "Silent Night", worked here as an assistant priest.