| Altoggenburg | |
| Native Name: | Bezirk Alttoggenburg |
| Native Name Lang: | de |
| Settlement Type: | District (German: Bezirk|label=none) |
| Map Alt: | Map highlighting the Swiss municipalities of Kirchberg (Northwest), Lütisburg (Northeast), Mosnang (Southwest), and Bütschwil (Southeast). The rivers Gonzenbach, Thur, and Necker are also shown within the district. |
| Pushpin Map: | Switzerland |
| Pushpin Map Alt: | A pushpin map showing that the district is in the Northeast of Switzerland. |
| Pushpin Map Caption: | Location of Altoggenburg in Switzerland |
| Coordinates: | 47.4°N 11°W |
| Area Total Km2: | 120.93 |
| Population As Of: | 2002 |
| Population Total: | 15,769 |
| Population Density Km2: | auto |
| Subdivision Type: | Country |
| Subdivision Name: | Switzerland |
| Subdivision Type1: | Canton |
| Subdivision Name1: | St. Gallen |
| Unit Pref: | Metric |
| Iso Code: | CH-SG |
| Area Code Type: | BFS District Number |
| Area Code: | 1711[1] |
Alttoggenburg District (German: Bezirk Alttoggenburg) is a former district of the canton of St. Gallen in Switzerland. The district existed from its formation in 1831 until the canton's 14 districts (German: Bezirke) were reorganized into 8 constituencies (German: Wahlkreise|label=none) on January 1, 2003. When the district was formed, it was split apart from Untertoggenburg. Today, the area is within the constituency of Toggenburg.
Alttoggenburg contained four communities. Of these, Kirchberg, Lütisburg, and Mosnang remain organized municipalities, while Bütschwil was merged with a neighboring community in 2013 to form Bütschwil-Ganterschwil.
| Coat of Arms | Community name | Area (km²) | Population (2002)[2] | |
|---|---|---|---|---|
| 13.79 | 3,584 | |||
| 42.59 | 7,875 | |||
| 14.09 | 1,349 | |||
| 50.46 | 2,961 | |||
| Total (4) | 120.93 | 15,769 |