Aircraft by manufacturer
- Lake (United States)
- Lambert (Belgium)
- Lammer Geyer (South Africa)
- Lancair (United States)
- LanShe Aerospace (United States)
- Laplan (Russia)
- Larus (Czech Republic)
- Lear Jet (United States)
- Legend Aircraft (United States)
- Legend Lite (Canada)
- LET (Czechoslovakia)
- Letov (Czechoslovakia)
- Leza (United States)
- Liberty (United States)
- LightWing (Switzerland)
- Lilienthal (Ukraine)
- LMAASA (Argentina)
- Lockheed (United States)
- Lockheed Martin (United States)
- Loehle (United States)
- Louit (France)
- Luscombe (United States)
- LZ (Czech Republic)