Octavin
| Woodwind instrument | |
|---|---|
| Classification | Aerophone | 
| Hornbostel–Sachs classification | 422.212 (Single reed instrument with irregular bore) | 
| Inventor(s) | Julius Jehring | 
| Developed | 19th century | 
The octavin (also spelled oktavin) is a 19th century woodwind instrument with a conical bore and a single reed.