| Ahneby | |
| German Name: | Åneby |
| Image Coa: | Ahneby Wappen.png |
| Coordinates: | 54.7167°N 52°W |
| Image Plan: | Ahneby in SL.PNG |
| State: | Schleswig-Holstein |
| District: | Schleswig-Flensburg |
| Amt: | Geltinger Bucht |
| Elevation: | 49 |
| Area: | 3.8 |
| Postal Code: | 24996 |
| Area Code: | 04637 |
| Licence: | SL |
| Gemeindeschlüssel: | 01 0 59 102 |
| Mayor: | Heinrich Iversen |
Ahneby (pronounced as /de/; Danish: Åneby) is a municipality in Schleswig-Flensburg district, in northern Germany.