| Lensahn | |
| Native Name Lang: | de |
| Settlement Type: | Amt |
| Subdivision Type: | Country |
| Subdivision Name: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Schleswig-Holstein |
| Subdivision Type3: | District |
| Subdivision Name3: | Ostholstein |
| Seat Type: | Region seat |
| Seat: | Lensahn |
| Leader Title: | Amtsvorsteher |
| Leader Name: | Klaus Winter |
| Area Total Km2: | 104,53 |
| Population Total: | 8469 |
| Population As Of: | 2020-12-31 |
| Website: | www.lensahn.de |
Lensahn is an Amt ("collective municipality") in the district of Ostholstein, in Schleswig-Holstein, Germany. The seat of the Amt is in Lensahn.
The Amt Lensahn consists of the following municipalities: