Zeppelin LZ 14 – L1 was a German military rigid airship. It was first flown on 7 October 1912. On 9 September it was brought down into the North Sea during a thunderstorm. This was the first Zeppelin accidents with fatalities. Today this accident is known as Helgoland Island Air Disaster.
| Name | Zeppelin LZ 14 |
| Other Name(s) | L 1 |
| Construction Number | LZ 14 |
| Class | H |
| Tactical Numbering | L 1 |
| Role | Military airship |
| National Origin | Germany |
| Manufacturer | Luftschiffbau Zeppelin |
| Decade | 1910s |
| First Flight | 7 October 1912 |
| Status | Destroyed on 9 September in accident |
| Remarks | The first Airship accident to cause fatalities |