| Image Coa: | DEU Ahlefeld-Bistensee COA.svg |
| Coordinates: | 54.4°N 49°W |
| Image Plan: | Ahlefeld-Bistensee in RD.png |
| State: | Schleswig-Holstein |
| District: | Rendsburg-Eckernförde |
| Amt: | Hüttener Berge |
| Elevation: | 15 |
| Area: | 10.04 |
| Postal Code: | 24811 (Ahlefeld), 24358 (Bistensee) |
| Area Code: | 04353 |
| Licence: | RD |
| Gemeindeschlüssel: | 01058175 |
| Website: | www.amt-huettener- berge.de |
| Mayor: | Andreas Brück |
| Party: | CDU |
Ahlefeld-Bistensee is a municipality in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany. It was formed on 1 March 2008 from the former municipalities Ahlefeld and Bistensee.