| Teinach | |
| Mouth Coordinates: | 48.6778°N 8.7253°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Length: | 15.8km (09.8miles) |
The Teinach is a river of Baden-Württemberg, southwestern Germany. It is a left tributary of the Nagold and flows for nearly 16 kilometres.It passes through Bad Teinach-Zavelstein.